Are they ALBW files; ie: albumwrap? If yes then all you need is albumwrap extractor. See How to Downld whole albums & Albumwrap. There's a list of splitters there also. I presume you're using windows right? If you have a mac I have a new option I haven't added to the above list yet. And as a last resort, there's also Audacity which is a free audio editor which can open mp3's, ogg, etc. & save back into mp3's or wav. http://audacity.sourceforge.net/windows.php

I downld a lot of albumwraps. I search specifically for albumwrap files so they extract into separate songs just as though they were zipped. There's no quality loss.