Source:
SBD (most likely) > Sony PCM R500 > DAT
Lineage:
DAT (master) > Sound Devices MixPre6 (1st gen) [@24/48] > Magix AudioLab Premium using: Level Correction, Stereo Enhancer (broaden stereo image) and Graphic EQ (Hi-Fi for music) + fade in/fade out > FLAC