Sorry for the stupid question, but I'm still relatively new to this.

I want to start loading my cd's into my Sirius S50 (have been only using the radio and downloading music off Sirius up until now). My understanding (correct me if I'm wrong), Is that I'm better off loading mp3's vs. wma's since mp3 files are not as large, although I should notice no difference in audio quality. I know how to make wma files using Windows Media Player.

Question is: What is a good recommended program to convert my cd's into mp3's, load them in my computer so that I can drag and drop 'em into my s50. I realize many of you are pro's at this stuff, so thanks for helpin' out a noob.