well the sansa site says video has to be in the following format
Container: Fully Interlaced AVI
Codec: MPEG-4 Simple Profile Level 1 or 2
Bitrate: Up to 512 kbps
Res.: QCIF+ 224X176
FPS: Up to 20fps
anything else probably won’t work… good luck.
the audio codec usually isn’t the problem
