I've started saving part of my CD collection to my hard drive so I can get rid of the CDs and save space. I've been using Real Player, and it's been working well, but I just realized that I've been saving the tracks in RealAudio format by default, and I'm wondering if there's any significant advantage to using another format (MP3 or Windows Media) instead? I have no plans to jump on the iPod bandwagon, so that's not a consideration. I just want to be able to play the music on my PC... Anyone have any thoughts on this?