stock music player not working

[tdeljr]

My wifes music player on her eris is not recognizing all of her music: certain songs when started it will say sorry the player does not recognize this media. Does anyone have any suggestion? I've already tried deleting all her music, and then reloading of the computer and still no luck. Please help!

 

[Demache]

What file formats are they in? This sounds like a file format issue.

I know you didn't say anything about iTunes, but if they are songs purchased off iTunes a few years back, they won't work because of DRM.