The 'masters' are mp3 files @ 128 kbps, each a bulk rip of one of the 18 MDs. This is a shame as it means a lossy source (MD) was re-encoded in a lossy format (mp3), further degrading the audio. Also, there are no track splits and no documentation other than scans of the actual discs. A fantastic listen, anyway!
We must all HEAR to believe