Sandisk MP3 audioplayer 512Mb M200 bl. Player media type: flash-media, Total storage capacity: 0.512 GB. Weight: 39.7 g. Dimensions (WxDxH): 75.2 x 32.8 x 20.8 mm, File type: MP3, WMA, and WMA DRM, Compatible operating systems: Windows 98SE, 2000, ME, XP; Mac OS 9.2.x+, 10.1.2+