Ok basically I used to use a program called AudioGrabber on PC that would let me do things like rip a multi track cd to a single mp3 file (useful for mixed cds with millions of tracks)...
Are there any programs that can do this for the mac?
Rip in iTunes with a non-variable bitrate (say 320kbps) and use MP3 Trimmer to concatenate the files. iTunes has a join track feature to do it, though.