How can I remove the write-protection?

I have a Digital Mp3 Player and i can't copy music from my computer because it says :''Cannot copy.......The disk is write protected.Remove the write-protection or use another disk.I want to listen music on my Mp3!!!!!soory for my bad english:D

How can I remove the write-protection?vista

If its full it wont give that message. There must be a button on the MP3 player which will remove right protection from the MP3 player.

havok

How can I remove the write-protection?antispyware

Is this a new MP3? Have you checked if it's already full?