DPI/GPX-PERSONAL & PORTABLE MW151BU 4GB DIGITAL AUDIO PLAYER BLUE DIGITAL AUDIO: MP3 WMA (NON-DRM)
The original Amazon web page for this item and the included instructions said it played .WAV, .MP3, and .WMA recordings.<br />The unit does not recognize .WAV recordings.<br />The unit displayed ERROR on .MP3 recordings.<br />The unit did play .WMA recordings.<br />I am planning to return it.