Is the problem with my mp3 player or the files?

[Joe Shmoe]

I have some wma (drm) files on my mp3 player which I have Been playing quite happily until recently .One track would not play and licence not valid flashed up. Gradually this spread to every song on the player. The next day I was able to burn the same tracks to cd and play it with no problems. Also before this happened the player kept freezing and jamming \and turning itself off . From the info I have given would any one know if it is a faulty player or is it the fault of the files.
your help would be appreciated.:-D

[willzyman247]

I think sometimes the files go bad after a certain time on an mp3 player. Every so often you just need to delete the old songs and put some them on again. It kind of refreshes the system.

[Joe Shmoe]

Thank You Willzyman247 That is a good thing to know.:-D