Mio A501 - Manual (Page 129)

More Programs
6-11
6.6
Windows Media Player Mobile
Use Microsoft Windows Media Player Mobile to play digital audio and video
files that are stored on the device or on a network, such as on a web site.
You can play files in either Windows Media or MP3 format (including files
with the extensions .asf, .wma, .wmv and .mp3).
Tap Windows Media to switch to the program.
Library Screen Playback Screen
Use Microsoft Windows Media Player on your desktop computer to
synchronize (if using Windows Media Player 10) or copy (if using Windows
Media Player 9) digital audio and video files from your computer to the
device.
For more information, tap Help , or see Windows Media Player Help
on the desktop computer.