Reply to Software to use for mix recording? FL Studio?

Hey guys,

I'm ready to take my good DJ mixes and record them in a professional fashion with perfect beatmatching, perfect everything, something you don't get during a live recording. Anyway, I've been using FL Studio and I recorded a 10min mix last evening . It sounds great while being played in FL, but some parts of the recorded mp3 sound bad. Maybe I am missing some vital quality checks before recording or something. I even tried 192 bit rate and then 320, the 320 still didn't sound the way everything does during playback within the software.

Maybe FL Studio is not the tool I should be using for quasi-quality recording?

Help? Thanks!