[attheshow]

Okay, I think I may have found an answer to my own question... I converted the lossless m4a (ALAC) file to WAV using XLD, then fed the WAV into Audacity. I marked the beginning of each track by clicking on the beginning of the track and navigating to Project>Add Label at Selection, then exported the new tracks in WAV format using File>Export Multiple. Each WAV track can then be encoded to FLAC with XLD. Does this make sense? (next time I'll just record the audio with Audacity and skip a couple steps)

Also, would this be an acceptable lineage for this operation?

MD master>MZ70 Headphone out>Mac Line In>Audio Hijack>ALAC>XLD>WAV>Audacity>Split Tracks>XLD>FLAC

Thanks.