SanDisk SDSDM-64, SDSDM-128, SDSDM-256, SDSDM512, SDSDM-1024 User guide

SanDisk miniSD™ Card 512MB

SDSDM-512

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Advanced Features:

z

All miniSD cards are bundled with an SD adaptor

z Built-in security features enable users to download, store and

play secure content

z

Capacities ranging from 128MB to 1GB

Product Specifications:

z

Dimensions: 0.8 in x 0.8 in x .05 in (L x W x D)

z

Voltage: 2.7V to 3.6V

z 5-year limited warranty

Note: 1 megabyte (MB) = 1 million bytes; 1 gigabyte (GB) = 1
billion bytes. Some of the listed capacity is used for formatting and
other functions, and thus is not available for data storage. Read

more.

Symptoms:

Why is the capacity of my Secure Digital memory card (as reported by many operating systems)
different than the capacity that is listed on its label?

Affects:

Description:

Sandisk products:

Secure Digital
Operating systems:

All Microsoft
Hardware platform:

All PCs, Jornadas, etc.

Cause:
The operating system, when reading the size of the card, reports a slightly different capacity than what is
listed on the card’s label. SD has a small overhead for the security features.

Solution:

Definitions of a Megabyte:

1) Operating Systems commonly define a Megabyte (MB) as: 2 to the 20th power (1,024KB--Kilobytes).

2) DiskDrive and Flash Memory Card Manufacturers commonly define a MB as one million bytes (exactly
1,000,000 bytes).

Unformatted (Capacity)

Also known as drive byte capacity before formatting. The Maximum capacity of disk drive before formatting
equals
[ (# Cylinders) X (# Heads) X (# Sectors) X (# Bytes per Track) ]

Example:

64MB CompactFlash Card consists of:
490 Cylinders
8 Heads
32 Sectors
512 Bytes per Track
This equates to: [ (490) X (8) X (32) X (512) ] = 64,225,280

Unformatted Capacity: 64,225,280 bytes
Formatted Capacity: 63,934,464 bytes (User Data)

Cause:

Disk Drive Companies such as SanDisk define 1 MEGABYTE as 1,000,000 BYTES. Operating Systems
define 1 MEGABYTE as 1,048,576 BYTES (1024K X 1024K or 2 to the 20th power).

Example:

SanDisk 64MB CompactFlash Card being read by Microsoft Operating System.
SanDisk Total Formatted Capacity divided by 1 MB (as defined by the Operating System) equates to the
following: 63,934,464 BYTES / 1,048,576 BYTES = 60,972,656 BYTES, 60.9MB displayed by OS.

Security overhead

SD-8
"The total card capacity of 8 million bytes is divided into a security area and a user accessible area (of
approximately 6.7 million bytes)."

SD-16
"The total card capacity of 16 million bytes is divided into a security area and a user accessible area (of
approximately 14.6 million bytes)."

SD-32
"The total card capacity of 32.1 million bytes is divided into a security area and a user accessible area (of
approximately 30.5 million bytes)."

SD-64
"The total card capacity of 64.2 million bytes is divided into a security area and a user accessible area (of
approximately 62.3 million bytes)."

SD-128
"The total card capacity of 128.4 million bytes is divided into a security area and a user accessible area (of
approximately 125.8 million bytes)."

How to Use: Insert your Flash Memory Card into the memory card slot on your
computer, cell phone, digital camera or PDA. You can then use the device as you
normally would, creating, copying, editing and moving files. Your Memory Card can also
be erased and reused. Precautions: Avoid using the Flash Memory Card when the
battery is low. When writing to the card, wait for the operation to complete before
removing the card. The card is designed to fit easily into the system one way only.
Do not bend the card or force it into the slot. Product Registration: You can register
your memory card online at SanDisk's web site at http://www.sandisk.com/registration.
Technical Support: Visit SanDisk’s web site, www.sandisk.com, or call 1-866­SANDISK (1-866-726-3475) between 8AM and 5PM PST, 7 days a week. SanDisk's 5
Year Warranty: SanDisk Corporation ("SanDisk") will repair or replace this Flash
Memory Card free of charge if it ever fails within 5 years from the date of purchase,
subject to the conditions set forth below. This Flash Memory Card will be free from
material defects in design and manufacture and will substantially conform to its published
specifications. The warranty applies only to the extent this Flash Memory Card is used in
devices that are compliant with the specifications of the appropriate standards
organization. This warranty applies only to the original purchaser of the SanDisk Flash
Memory Card who has proof of purchase, if requested. This warranty is void if the Flash
Memory Card is not used in accordance with the product instructions or if SanDisk
determines that any failure has been caused by misuse, neglect, improper installation,
repair, alteration or accident. SanDisk bears no responsibility for failure or defect caused
by any third party product or components whether authorized or not. SanDisk's products
are not warranted to operate without failure. SanDisk does not recommend the use of its
products in life support applications where in a failure or malfunction, the product may
directly threaten life or injury. Accordingly, in any use of SanDisk products in life
support systems or other applications where failure could threaten life or injury, the
products should only be incorporated in systems designed with appropriate redundancy,
fault tolerant or back-up features. This product is intended for consumer end-use only; it
is not intended for nor warranted for commercial applications. If a product fails under the
terms of this warranty, SanDisk will inspect the product and at its option, repair or
replace the product. SanDisk will ship out a product with equal to or greater capacity.
SanDisk's sole liability, and the exclusive remedy, for any acknowledged defect(s) shall
be the repair or replacement of the product in question. SanDisk may, at its sole option,
replace the product with a refurbished product. ALL STATUTORY OR IMPLIED
WARRANTIES ARE HEREBY DISCLAIMED TO THE FULLEST EXTENT.
SANDISK SHALL NOT BE LIABLE UNDER ANY CIRCUMSTANCES FOR ANY
INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOST DATA.

CE-DECLARATION OF CONFORMITY

We affirm, that the Electronic products (ITE peripherals) manufactured by us fulfils the
requirements of the Directive of Electromagnetic Compatibility (EMC) 89/336/EEC and
the Amending Directive 93/68/EEC concerning these.

Name of manufacturer
Contact information of the

manufacturer

SanDisk Corporation

140 Caspian Court
Sunnyvale, CA 94089
Phone: [phone]
Fax: [phone]

Description of the product Mini SD

Trade name and model
number of the product.

Name, address, telephone­and fax number of the
manufacturer’s authorized
representative operating in
the EEA-area.

Mini SD: SDSDM-64, SDSDM-128, SDSDM-256, SDSDM­512, SDSDM-1024, SDSDM-2048

SanDisk Corporation
Schipholpoort 40 - 2034 MB Haarlem -The Netherlands
PO Box 4084 - 2003 EB Haarlem - The Netherlands
Phone: [phone]
Fax: [phone]

Emission: EN 55022:1998 + A1: 2000+A2:2003. Immunity: EN 55024:1998 Plus A1:
2001+ A2: 2003, IEC 61000-4-2: 1995 plus A1:1998 & A2: 2000, IEC 61000-4-3. 2002

The device is CE-marked.
Sunnyvale CA 94089 USA,
August 11, 2005.

SanDisk Corporation.

Sudhakar Wasnik,
Sr. Regulatory Engineer.