Yamaha CRW-70 User Manual
(DECLARATION OF CONFORMITY PROCEDURE)
Responsible Party: Yamaha Electronics Corporation, USA.
Address: 6660 Orangethorpe Avenue
Buena Park, CA 90620
Telephone: 714-522-9105
Fax: 714-670-0108
Type of Equipment: CD Recordable/Rewritable Drive
Model Name: CRW-70
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following conditions:
1) this device may not cause harmful interference, and
2) this device must accept any interference received including interference that
may cause undesired operation.
See user manual instructions if interference to radio reception is suspected.
FCC INFORMATION (U.S.A.)
1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!
This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements.
Modifications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product.
2. IMPORTANT: When connecting this product to accessories and/or another product use only high quality shielded cables.
Cable/s supplied with this product MUST be used. Follow all installation instructions. Failure to follow instructions could void
your FCC authorization to use this product in the USA.
3. NOTE: This product has been tested and found to comply with the requirements listed in FCC Regulations, Part 15 for Class
“B” digital devices. Compliance with these requirements provides a reasonable level of assurance that your use of this product
in a residential environment will not result in harmful interference with other electronic devices. This equipment generates/uses
radio frequencies and, if not installed and used according to the instructions found in the users manual, may cause
interference harmful to the operation of other electronic devices. Compliance with FCC regulations does not guarantee that
interference will not occur in all installations. If this product is found to be the source of interference, which can be determined
by turning the product “OFF” and “ON”, please try to eliminate the problem by using one of the following measures:
Relocate either this product or the device that is being affected by the interference.
Utilize power outlets that are on different branch (circuit breaker or fuse) circuits or install AC line filter/s.
In the case of radio or TV interference, relocate/reorient the antenna. If the antenna lead-in is 300 ohm ribbon lead, change
the lead-in to coaxial type cable.
If these corrective measures do not produce satisfactory results, please contact the local retailer authorized to distribute this
type of product. If you can not locate the appropriate retailer, please contact Yamaha Electronics Corporation, USA.
6660 Orangethorpe Avenue, Buena Park, CA 90620 U.S.A.
Laser Product Class: Class 1
Laser Diode Properties
Wavelength: 780 – 787 nm
Pulse Durations and Max. Output
at the lens of the Laser Pickup Unit
Read Mode: 0.85 mW (Continuous)
Write Mode: Max. 38 mW
(for 424 ns, Min. Cycle 115.7 ns)
Laserprodukt-Klasse: Klasse 1
Eigenschaften der Laserdiode
Wellenlänge: 780 – 787 nm
Impulsdauer und max. Ausgang an der Linse der
Laser-Abtasteinheit
Lesemodus: 0.85 mW (kontinuierlich)
Schreibmodus: Max. 38 mW
(für 424 ns, Zyklusmin. 115,7 ns)
Classe du produit laser: Classe 1
Caractéristiques de la diode laser
Longueur d’onde: 780 – 787 nm
Durée des impulsions et sortie maximum depuis
la lentille du bloc capteur optique
Mode de lecture: 0,85 mW (continue)
Mode de gravure: max. 38 mW
(pour 424 ns, cycle min. 115,7 ns)
Clase de producto láser: Clase 1
Propiedades del diodo láser
Longitud de onda: 780 – 787 nm
Duración del pulso y potencia de salida máxima
en el objetivo de la unidad captora láser
Modo de lectura: 0,85 mW (continua)
Modo de escritura: máx. 38 mW
(para 424 ns, ciclo mínimo 115,7 ns)
CAUTION
Use of controls or adjustments or performance of
procedures other than those specified herein may result
in hazardous radiation exposure.
ACHTUNG
Halten Sie sich beim Bedienen und Einstellen der
Bedienungselemente sowie bei der Bedienungsabfolge
an die Anleitung, da sonst gefährliche Strahlen austreten
können.
ATTENTION
L’emploi de commandes, de réglages ou un choix de
procédures différents des spécifications de cette
brochure peut entraîner une exposition à d’éventuelles
radiations pouvant être dangereuses.
PRECAUCION
El usar los controles o ajustar o realizar procedimientos
diferentes a los especificados aquí resultará en
peligrosas exposiciones a la radiación.
VARO! AVATTAESSA JA SUOJALUKITUS OHITETTAESSA
OLET ALTTINA NÄKYMÄTTÖMÄLLE
LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.
VARNING! OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR
ÖPPNAD OCH SPÄRREN ÄR URKOPPLAD.
BETRAKTA EJ STRÅLEN. STRÅLEN ÄR FARLIG.
CAUTION - VISIBLE AND / OR INVISIBLE LASER RADIATION WHEN
OPEN AND INTERLOCKS DEFEATED.
AVOID EXPOSURE TO BEAM.
VORSICHT ! SICHTBARE UND / ODER UNSICHTBARE
LASERSTRAHLUNG TRITT AUS, WENN DECKEL
GEÖFFNET UND WENN SICHERHEITSVERRIEGELUNG
ÜBERBRÜCKT IST. NICHT DEM STRAHL AUSSETZEN.
CAUTION - VISIBLE AND / OR INVISIBLE LASER RADIATION WHEN
OPEN AND INTERLOCKS DEFEATED.
AVOID EXPOSURE TO BEAM.
VARNING - SYNLIG OCH / ELLER OSYNLIG LASERSTRÅLNING NÄR
DENNA DEL ÄR ÖPPNAD OCH SPÄRRAR ÄR
URKOPPLADE. STRÅLEN ÄR FARLIG.
VARO ! AVATTAESSA JA SOUJALUKITUS OHITETTAESSA
OLET ALTTIINA NÄKYVÄLLE JA / TAI NÄKYMÄTÖMÄLLE
LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.
VARNING - SYNLIG OCH / ELLER OSYNLIG LASERSTRÅLNING NÄR
DENNA DEL ÄR ÖPPNAD OCH SPÄRREN ÄR URKOPPLAD.
BETRAKTA EJ STRÅLEN.
VORSICHT ! SICHTBARE UND / ODER UNSICHTBARE
LASERSTRAHLUNG TRITT AUS, WENN DECKEL
GEÖFFNET UND WENN SICHERHEITSVERRIEGELUNG
ÜBERBRÜCKT IST. NICHT DEM STRAHL AUSSETZEN.
CLASS 1 LASER PRODUCT
LASER KLASSE 1 PRODUKT
LUOKAN 1 LASERLAITE
KLASS 1 LASER APPARAT
PRODUIT LASER DE CLASSE 1
COMPLIES WITH 21 CFR CHAPTER 1, SUBCHAPTER J.
English
OWNER’S MANUAL
i
SAFETY PRECAUTIONS
PLEASE READ THE FOLLOWING WARNINGS AND CAUTIONS CAREFULLY
TO PREVENT PERSONAL INJURY AND DAMAGE TO THE DEVICE.
These precautions explain how to use the device correctly and safely, thereby
preventing injury to yourself and others. This section has been sub-divided into a
WARNING section and a CAUTION section, according to the likelihood and nature
of any potential injuries or damage inflicted. They relate to your personal safety,
and also help you minimize the risk of damaging the device. Please read these
sections carefully before proceeding.
WARNING
Always follow these basic precautions to prevent short-circuit, damage, fire, or
other hazards, and to prevent serious injury or death from electrical shock.
● To avoid risk of electrical shock or fire, do not attempt to open or disassemble
the device.
● To avoid risk of eye damage or blindness, do not look directly at the laser source.
● To avoid the risk of personal injury or electrical shock, do not insert your fingers
or foreign objects into the device. Take particular care if small children are
present.
● To avoid the risk of electrical shock, fire, or personal injury, do not expose the
device to rain, use it near water o r in dam p or wet con ditions, or place con tainers
of liquid (which may spill into the unit) on the device.
● To avoid risk of personal injury, electrical shock, fire, or damage to the unit,
follow the Owner’s Manual carefully and set up the unit correctly.
● If unusual smells, sounds or smo ke com e fro m the de vice, turn off the com puter
immediately to av oid t he r isk of electrical shock, fire or damage to the device,
and return the device to the store of purchase or your nearest Yamaha dealer
(listed at the back o f this manual).
● When cleaning the drive, unplug the power cable first from the electrical outlet
(do not touch the plug with wet hands) as there is an increased risk of electrical
shock.
ii
● The drive should not be exposed to temperatures outside the range 5 – 35 °C (41
– 95 °F) to avoid risk of malfunction, fire or personal injury.
● Clean the AC power plug regularly, especially the blades, to avoid the risk of
insulation failure or fire due t o h umidity.
● Do not pull on the cord itself when disconnecting from the electrical outlet, or let
objects rest or roll on the co rd , as this can da m ag e the c ord an d ca use electrical
shock or fire.
● Insert the AC plug firmly, as a poor connection can result in electrical shock or
fire.
● Only use the AC adapter provided. Failure to do so can result in malfunction or
fire.
● Do not connect too many devices to a single electrical outlet or use a voltage
exceeding the rated voltage, as this may cause overheating and fire.
CAUTION
Always follow these basic precautions to prevent physical injury to yourself or
others, and damage to the instrument or other property.
● Always unplug the computer from the electrical outlet if it will not be used for a
prolonged period of time or if there is a possibility of lightning, to avoid the risk
of electrical shock or fire.
● Do not expose the device to excessive vibration, heat, cold or dust. Doing so may
result in damage to the unit’s panel or internal components.
● Do not use the device near other appliances such as televisions or radios. Doing
so may ca u se interference and a ffect th e pr oper operation of the de vice or other
appliance.
● To avoid damage to the device or personal injury, always place the device in a
stable position.
● Always place the device horizontally to avoid the risk of lost written data.
● Always remove any disc from the drive before transporting the device as written
data may be lost.
iii
● Use a soft, dry cloth to wipe th e device. Do not use be nz en e, p ain t thinn e rs,
detergents, or chemically treated wiping cloths as these may damage the unit.
Do not place vinyl, plastic, or ru bber objects on th e de vice as ch em ical re action s
can cause damage to the device.
● Do not rest your weight on or place heavy objects on the device, or use excessive
force on the buttons, switches or connectors, as damage to the unit or personal
injury may occur.
● Do not listen to audio with headphones at high volume for prolonged periods of
time, as your hearing may be damaged as a result.
● Before use, always turn down the volume as a sudden burst of sound at high
volume can result in hearing damage.
● Do not place the device anywhere near sources of magnetic interference as
operational stab ility may be adversely affec te d.
● Have the device serviced regularly to avoid internal dust buildup that can cause
malfunction, damage or fire. For service information and service charges,
contact the store of purchase or your nearest Yamaha dealer (listed at the back
of this manual).
● Do not allow the plug of the AC adapter to come into contact with metal as a
short circuit can result and cause a malfunction or damage to the device.
● Do not wrap the power cord around the AC adapter as it may become
disconnected and cause a malfunction.
● Do not touch the pickup as it can cause sounds to drop out or data cannot be
written/read normally.
iv
●●●● The information contained in this manual is subject to change
without prior notice.
●●●● All trademarks contained in this manual belong to their
respective owners.
●●●● Yamaha does not bear any responsibility for a problem that
occurs as a result of any operations carried out other than
those stated in the manual that came with the drive.
●●●● Reproduction of this manual, either in part or in full, is
expressly forbidden.
■ Precautions for Transportation
Keep the original box for future transportation. Before transporting the device, always put it
in the original box. Yamaha does not bear any responsibility for problems that occur during
transportation with the device not in the original box.
■ WARRANTY
YAMAHA AND ITS SUPPLIERS ACCEPT NO LIABILITY FOR THE LOSS OF ANY DATA OR
ANY PROBLEMS CAUSED AS A RESULT OF USING THIS PRODUCT. AS A PRECAUTION, IT
IS RECOMMENDED THAT THE DISCS BE TESTED AFTER THEY HAVE BEEN WRITTEN TO.
FURTHERMORE, UNDER NO CIRCUMSTANCES DOES YAMAHA AND ITS SUPPLIERS
GUARANTEE THE RELIABILITY OF THE DISCS.
©2001 YAMAHA CORPORATION. All Rights Reserved.
This document may not, in whole or in part, be copied, photocopied,
reproduced, translated, transmitted, or reduced to any electronic
medium of machine readable form without prior consent in writing
from Yamaha.
Windows is a registered trademark of Microsoft Corporation.
SafeBurn™ is a trademark of Yamaha Corporation.
All other trademarks are the property of their respective companies.
v
Table of Contents
Handling Discs and Data........................................................... 1
Handling Discs........................................................................................ 1
Copyright ................................................................................................ 1
Disclaimer of Indemnity ......................................................................... 1
Supported Discs ...................................................................................... 2
Features of the CRW-70 Drive..................................................... 5
Before Use............................................................................ 9
System Requirements ............................................................................. 9
Serial Number ....................................................................................... 11
Exterior Features...................................................................12
Loading/Removing a Disc.........................................................15
Loading a Disc...................................................................................... 15
Removing a Disc................................................................................... 16
Using the CRW-70 Drive as a CD-R/RW Drive
Setup Procedure (Flowchart) ................................................................ 17
STEP 1 Connect the CRW-70 Drive................................................... 18
STEP 2 Install the Device Drivers....................................................... 21
STEP 3
STEP 4 Install the CD Writing Software ............................................ 24
Disconnecting the CRW-70 Drive........................................................ 24
Listening to Audio CDs and MP3 Discs .........................................25
CDs/MP3 Discs that Can Be Played on the CRW-70 Drive ................ 25
Connecting ............................................................................................ 27
Playback................................................................................................ 28
Pause During Playback ......................................................................... 29
Skip ....................................................................................................... 30
Changing the Playback Mode............................................................... 31
Troubleshooting....................................................................32
Appendix.............................................................................39
Recording Methods............................................................................... 39
Firmware............................................................................................... 42
Relationship Between Busy LED and Operation ................................. 43
Relationship Between Display and Operation...................................... 44
CRW-70 Drive Specifications .............................................................. 45
Index ..................................................................................................... 49
Make Sure that the CRW-70 Drive Is Correctly Recognized
(When Connected to a Computer)
..17
... 22
vi
Handling Discs and Data
Handling Discs
To avoid trouble such as writing errors, the loss of recorded data, and a
breakdown in the drive, take the following precautions when handling discs.
• Do not place discs in a hot or damp place or where they will be exposed to
direct sunlight.
• Do not touch the surface of a disc.
When handling a disc, hold it by the edges.
• Remove dust and dirt from the surface of a disc.
Use an air spray to remove dust. The surface of a disc may be scratched if
strongly wiped with a dry cloth.
• Do not stick labels to the surface of a disc or write anything on it except
where designated.
• Do not clean discs with chemicals or detergents.
• Do not bend or drop discs.
• Use only circular discs
or heart shaped discs.
*1
Suitable for 8cm CDs.
Copyright
*1
. Do not use irregularly shaped discs, such as star
It is prohibited by law to duplicate copyrighted materials for non-personal
use without the prior consent of the copyright holder. When copying
material with your CD-R/RW drive, take due care not to infringe the
copyright.
Disclaimer of Indemnity
Yamaha assumes no liability for the loss of any profits incurred as a result of
the loss or corruption of data written on a CD-R or CD-RW, for any loss or
damage caused by or arising out of extraordinary circumstances (including
circumstances that Yamaha has foreseen or could foresee), or for any
damages incurred to cover the damages claimed by a third party. After
handling important data, you should always make a comparison between the
original and the copied data to confirm that the data has been copied
properly. In no event shall Yamaha be liable for any damage to discs due to a
Buffer Underrun Error (→P. 7) or any other reason, or the inability to use
distributed discs with your drive because of their formats.
1
Handling Discs and Data
Supported Discs
The CRW-70 drive can write on discs that carry the following logos:
For the latest information about discs already checked for compatibility with
the drive, go to the YAMAHA CD-R/RW Drive web site.
URL: http://www.yamaha.co.jp/english/product/computer/
CD-R discs
• The CRW-70 drive can write onto these discs at 1X, 2X, 4X, 8X or 12X
speed.
• These discs can be read/played on a CD-ROM drive or a CD player.
Notes
• 12X-speed writing is enabled with Partial CAV method. (→P. 4)
• Before writing, check the writing speeds your disc supports.
CD-RW discs
• The CRW-70 drive can write/rewrite at 2X or 4X speed.
• These discs can be read/played on a device (e.g. CD-ROM drive) that
supports “CD-RW.”
Note
Note that some discs support only 2X speed.
High Speed CD-RW discs
• The CRW-70 drive can write/rewrite at 4X or 8X speed.
• These discs can be read/played on a CD-RW drive that bears the High Speed
CD-RW logo or a device (e.g. CD-ROM drive) that supports “CD-RW.”
Notes
• When using the packet writing method (→P. 41) for writing/rewriting onto
High-Speed CD-RW discs, you can select the 4X
more information, refer to the documentation that came with your CD writing
software. (Your CD writing software must support the Full CAV method, as
does the CD writing software that came with the CRW-70 drive.)
• The Full CAV method is recommended when opening and editing a file on a
CD-RW disc with an application.
• In order to write, erase, read or play High Speed CD-RW discs, use a CD-R/RW
drive that bears the High Speed CD-RW logo. When using a CD-ROM drive to
read/play High Speed CD-RW discs, use a drive that supports CD-RW discs.
If these discs are used with a CD-R/RW drive not bearing the High Speed CDRW logo, the discs may not be recognized, resulting in the computer not
operating correctly or other malfunctions occurring.
Refer to the page at the URL below before attempting to read/play these discs
on a Yamaha CD-R/RW drive not bearing the High Speed CD-RW logo.
URL: http://www.yamaha.co.jp/english/product/computer/
2
10X Full CAV method. For
–
What is Orange Book?
The Orange Book is a collection of standards for CD-R and CD-RW,
and sometimes refers to the standards themselves. The Orange Book
Part 2 deals chiefly with CD-R discs, and the Orange Book Part 3 with
CD-RW discs. The book takes its name from its orange colored cover.
Audio CDs and CD-ROM s
Ordinary audio CDs that can be played back on a CD player contain
sounds or music data data recorded in a format called CD-DA
(Compact Disc-Digital Audio). This means that CD-R discs can also be
played on a CD player if they store audio data recorded in CD-DA
format. A 79-minute CD is capable of recording audio data of up to 79
minutes (16-bit/44.1 kHz-sampled stereo audio data).
On the other hand, CD-ROMs store computer data digitally encoded
and recorded in a format specified by the international standard
ISO9660 so that they can be recognized by many types of computers.
CDs (CD-DA) were originally developed for music, later came into use
as read-only memory (ROM) for computers, and are now widely used
as a storage medium for recording audio and graphics data, and also for
databanks and electronic publications.
Included among the CD-ROM variations are CD EXTRA and Video
CDs.
What is CD EXTRA?
This refers to CDs containing audio data, text data, graphics data, etc., recorded
in multiple sessions. Most CD EXTRA discs allow you to listen to music on an
ordinary CD player or to enjoy pictures and text information on your computer,
whereas Video CDs allow you to play back video and audio data compressed in
MPEG1 format.
3
Handling Discs and Data
Partial CAV (Constant Angular Velocity)
The CLV (Constant Linear Velocity) method is generally used to write
data on a CD-R disc. In writing by the CLV method, the disc rotation
speed is adjusted to keep the data writing speed (data transfer rate)
constant at any part of the disc.
In contrast, the CAV method (Constant Angular Velocity) method
exercises control so as to keep the disc rotation speed constant. The
CAV method makes it possible to substantially increase the maximum
data transfer rate with a minimum increase in the load to the drive, and
for this advantage, it is adopted today for most play-only CD-ROM
drives.
Since a CD is formatted so that it has an even data recording density at
all of its parts, the amount of data recorded in a track increases as the
read/write head moves outward on the disc. For the CAV method,
therefore, data is transferred at a higher rate when it is written in tracks at
the outer radius of the disc.
To achieve up to 12X-speed writing, the CRW-70 drive employs the
Partial CAV method, which is a combination of the CAV method used
for writing in inner tracks and the CLV method used for writing in outer
tracks. The Partial CAV method controls the disc rotation speed so that
the CRW-70 drive starts writing at 8X speed in inner tracks, increases
the speed to 12X as the read/write head moves outward, and holds the
speed at 12X in outer tracks.
4
Features of the CRW-70 Drive
High speed writing/reading
The CRW-70 drive supports up to 12X-speed writing of CD-R discs*1, and
up to 8X-speed writing/rewriting of CD-RW discs. The drive also supports
data reading and digital audio data extraction at up to 24X speed.
USB 2.0 compatible
USB 2.0 provides high-speed data transfer capability (max. speed 480
Mbits/sec.).
The transfer speed is about 40 times faster than the USB 1.1 standard.
USB’s hot plug capability allows the drive to be plugged in and unplugged
even with the computer turned on.
SafeBurn™ (Enhanced write stability technology)
Generous 8MB of buffer m emory
Because of the large data storage area, stable disc writing is possible even at
fast speeds.
Buffer Underrun Protection
When data transfer from the computer is interrupted, Buffer Underrun
Protection is activated to keep precious CD-R discs from going to waste.
(→P. 7)
Optimum Write Speed Control
Before writing to CD-R discs, the CRW-70 drive checks the disc’s capability
and automatically selects the optimum writing speed
The speed you set with your CD writing software is the maximum writing
speed.
*2
for greater reliability.
Reliable writing
Yamaha’s proprietary Pure-Phase Laser System (patent applied for)
This technology reduces phase interference of the laser beam, so that it
projects accurately onto the disc. Jitter value, an important measure of
recording quality, has been improved 25% compared with Yamaha models
not using this technology.
5
Features of the CRW-70 Drive
Running OPC (Optimu m Power Control)
Running OPC automatically adjusts the output of the laser according to the
characteristics of the disc being used. Running OPC provides greatly
enhanced recording reliability for various manufacturers’ discs.
High-fidelity digital audio
The CRW-70 drive supports extraction of digital audio data at up to 24X
speed, as well as the recording of digital sound with complete fidelity even
when writing at 12X speed.
CD TEXT support
Information such as song names or artist names can be recorded on CD-R/
RW discs using CD writing software. The text data on the created disc can
be displayed on a CD player that is compatible with the CD TEXT format.
Audio CD and MP3 disc playback support
You can play audio CDs or MP3 discs (→P. 25) on the CRW-70 drive
without connecting it to a computer, by using optional headphones or other
audio device.
*1
12X-speed writing onto CD-R discs is enabled with the Partial CAV method.
(→P. 4)
*2
The optimal writing speed automatically selected will be between 8X speed and
the maximum speed designated for that disc. If the disc is rated at lower than 8Xspeed writing, you need to designate the most suitable writing speed manually.
6
Buffer Underrun defined
CD-R/RW drives are equipped with a buffer memory. This memory
temporarily stores data while a disc is being recorded. When the buffer
memory becomes empty (due to unexpected interruptions or the
system’s inability to keep up with the writing process), a writing error
occurs. This error is known as a “buffer underrun error.”
Data
Data is stored in
the buffer
memory...
and then written
to the disc
If data transfer is
interrupted...
then the buffer
memory begins
to empty
When no data is
left in the buffer
memory... (Buffer
Underrun)
writing fails (Buffer
Underrun Error)
A Buffer Underrun Error will permanently ruin the disc.
Yamaha Buffer Underrun Protection
Buffer Underrun Protection is featured in the CRW-70 drive CD-R/RW
drives. When a buffer underrun is about to occur, a buffer underrun
error is prevented by temporarily suspending the writing process.
Writing resumes when enough data has accumulated again in the buffer
memory. Buffer Underrun Protection on the CRW-70 drive is
extremely accurate, resulting in seamless recording between stop and
continuation points.
If data transfer is
interrupted...
and the buffer
memory is about
to empty...
Once data transfer
resumes normally...
and enough data has
accumulated in the
buffer memory...
writing is
suspended
writing
resumes
Yamaha Buffer Underrun Protection ensures error-free results.
7
Features of the CRW-70 Drive
Test writing for Buffer Underrun
Test writing is a function to check for the likely occurrence of Buffer Underrun
on your computer system.
The CD writing software that came with the CRW-70 drive includes test
writing functions for this purpose.
When Buffer Underrun Protection is activated (Default), test writing cannot be
selected on your writing software.
To use test writing, Buffer Underrun Protection should be deactivated.
8
Before Use
System Requirements
When the CRW-70 drive is connected to a computer and used as a CD-R/
RW drive, the system environments must satisfy the following conditions.
If your computer does not meet the requirements listed below, the CRW-70
drive may not be able to write at the maximum speed.
Hardwa re
• PC/AT-compatible computer
• CPU: Pentium II-class or higher, 300 MHz or faster
• RAM: 64 MB or more
• USB port (USB 2.0 compatible)
• A spare PCI expansion slot or a CardBus slot for a USB interface card (if
there is a need to install an USB interface card in your computer)
•CD-ROM drive
Notes
• To install the device drivers, you need a CD-ROM drive other than the CRW-70
drive.
• The CRW-70 drive cannot be used as a boot drive. Furthermore, the CRW-70
drive cannot be used to set up the operating system one more time.
• For Windows XP, use a RAM of 128 MB or more.
USB interface card
Your computer requires a USB port in order to connect the CRW-70 drive.
To fully utilize the performance of the CRW-70 drive, a USB 2.0 compatible
interface card and EHCI (Enhanced Host Controller Interface) compliant
driver are also necessary. If your computer has a USB port with USB 1.1
specifications, YAMAHA recommend that you install a USB 2.0 compatible
interface card.
Notes
• For the latest information about USB 2.0 interface cards already checked for
compatibility with your drive, go to the YAMAHA CD-R/RW Drive web site.
URL: http://www.yamaha.co.jp/english/product/computer/
• For information on how to purchase an EHCI compliant driver for the USB
interface card, or information about the operating system supporting the card, go
to the interface card manufacturer’s web site or contact user support services.
9
Before Use
Connecting the drive to a USB 1.1 port
If the CRW-70 drive is connected to a USB 1.1 port, which is one of the
typical USB ports installed as standard on computers, the drive operates in
accordance with USB 1.1 standard.
For reliable data writing, Buffer Underrun Protection should be activated
and the writing speed should be set to 8X on the CD writing software.
With a USB 1.1 port, the data reading speed is 6X at maximum.
USB cable
Use the USB cable provided.
According to USB specifications, the maximum length for cables connecting
devices is 5 m.
CRW-70
Maximum length of cable
between devices: 5.0 m
Note
Be sure to connect the drive to the USB port of the computer. If you connect the drive
to the computer via a USB hub, the drive may not operate properly.
Operating system (OS)
Windows 98 Second Edition, Windows Me, Windows 2000 Professional, or
Windows XP
Notes
• For Windows 98 Second Edition, install the device drivers provided (storage class
drivers) in the computer. For details, refer to the separate manual “Device Driver
Installation Guide,” that came with the CRW-70 drive.
• The CRW-70 drive cannot be used with a system that has been booted in MSDOS or Safe mode.
CD writing software
The CRW-70 drive requires CD writing software to write onto a CD-R/RW
disc. Use the CD writing software that came with the CRW-70 drive. If you
use different CD writing software, consult the manufacturer of the CD
writing software to check the compatibility with the CRW-70 drive.
Note
For details about how to install and use the CD writing software, refer to the
documentation that came with it.
10
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