Burn the songs as data rather than audio files; and 213 is the max I've gotten on a CD so far. I guess you can get more or less depending on how you have your burner configured for audio quality, formatting, etc. In that I have a "tin ear" and don't know squat about configuring my burner (Nero)anyhow, I just let the burner go at it by default settings.
I have learned one important thing though. Organize the music files first and then finish off the discs where they can't be modified after burning them. If you don't, the data will "scramble" and some of the songs won't play right later....or the entire CD will eventually screw up.
I've gotten away from mp3s except for storing tunes away in that format in my music library (to burn audio CDs from later). Burning songs as audio files works much better for me quality-wise, and it's also aggravating having to search through 200 songs for one in particular that I want to hear.