I use EasyCD-DA Extractor, from Poikosoft. It will rip CDs or convert
existing tracks on your hard drive to or from many different formats. It's a
ploddlingly slow converter, but always does a clean job. In fact, I just
finished converting my entire music library to MP3s using it. It even grabs
the WMA disk/track information and adds it to each track's ID3 tag.
Get it here: http://www.poikosoft.com