If you are interested in quality, ditch WMP, and use Exact Audio Copy for the rips to WAV files, then use Lame 3.90 to convert these to MP3. Also highly recommended is to load the WAVs into an editor and (at least) normalise them. You'd be amazed at what crap (in terms of technical quality) is released on CD.

Yeah its a lot of extra work, and the investment in knowledge is substantial, but its really worth it, if you want good MP3s.