Some people purchase music online which is automatically limited to their use, & when others obtain copies it means they are unable to do much with them.
I believe the older BearShare (listed above) does not limited you to only downloading DRM music.
There may be utilities to help you. BTW search the links at bottom of first post here
CODECs list for Movies/Audio/ Alternate players / Video help forums/ video-mp3 fixers as there may be something to help you.
C: Video Tools & select the type of tool you need in your search at that site.