Well, I tried!

Anyway, I just checked my music files for clarification. I use QuickTime as my player. All of my files show up at "Movie Player Document"s. I have had no problem burning them to CD and playing them. There have been a few that Toast (my burning program) will convert to AIFF for some reason or another. But, they have been fine.

I don't know why your files are now showing up as "documents" instead of "mp3 Audio File". I would suggest testing them by burning a CD and seeing what happens.

I wouldn't think that LimeWire has anything to do with how iTunes describes the file type. Have you upgraded iTunes lately? Maybe there was a change in their system?

Again, I would suggest testing some of the files. Trial and error and all...

Good luck. Let me know how it goes.