I could listen to some songs
Prob need to format the player
1. put player in msc mode (settings menu under USB)
2. go to my computer and rightclick on sansa
3. format box: choose quick format
4. format complete, allow player to stay connected to computer for 10 mins
go to sandisk.com and under downloads, download the updater to keep this from happening again, put the updater on your computer so each time you plug it in, it will look for updates
make sure you do not put questionable files on the player such as itunes or mp4, as they will "bad track"