started churning through the series 2 blake's 7 discs
was pleased that the episodes with audio commentary in this season actually use secondary audio tracks instead of having a second copy :D
(i can probably postprocess that shit in ffmpeg on the series 1 episodes if i get antsy)
there are 3 episodes in series 1 with audio commentaries, in 2 versions each
so i can save like 50 gigabytes by merging the commentary audio tracks as secondary tracks and discarding the extra copies of the video :P
anyway, no rush on that. should be straightforward fmpeggery when i get to it
Brooke Vibber 
Lucas Werkmeister