Absolutely, in my opinion you should re-rip your music in either .wav or .aiff formats. The foundation of your digital library should be uncompressed, or at least flac, for the best sound quality. Once you have them ripped to uncompressed then you can play with your files and compress them for portable playback, for example. And make sure you have files backed up properly. Db poweramp or XLD are terrific programs for ripping.