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About Licenses and Protected Files
Protected files are digital media files that are secured with a license to prevent unauthorized
distribution or playback.
The license specifies how you can use the file. For example, a license can specify how many
times you can play a file. A license can also specify whether you can burn the file to a CD or
synchronize (copy) the file to a portable device.
The terms of the license are specified by the person or company that provided the file. Most
people obtain protected files from online stores, such as MSN Music and Napster.
When copying a protected file from your computer to your Smartphone:
Always use the desktop version of Windows Media Player 10 to synchronize (copy) the
file to your Smartphone. For example, do not use Windows Explorer to drag and drop files
from your computer to your Smartphone.
Always synchronize the file to a storage card that is inserted into your Smartphone. Do not
synchronize to a storage card that is inserted into a storage card reader.
For more information about synchronizing files to your Smartphone and other devices, see the
desktop Player Help.
You can view the protection status of a file by checking its file properties (select Menu, and
then select Properties).
N O T E
You can view the protection status of a file by checking its file properties (select Menu, and then
select Properties).
Supported Audio and Video Codecs
High-quality digital media files can require a large amount of storage space. To minimize file
size, digital media files are often compressed by using software called a codec (short for
compressor/decompressor). To play the file, it must be decompressed by using the same codec
that compressed the file.
Windows Media Player 10 Mobile for Smartphone can play files that have been compressed
by using any of the following audio and video codecs. You can determine which codecs a file
uses by checking its file properties (select Menu, and then select Properties).
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