Lord Grievous said:

I think they just mention Adywan, but I thought you only did Revisited editions. So what source did you use for these versions, are they from an actual HDTV broadcast because I don't know of any HD transfers of either the theatrical or SE editions.

This is correct, Adywan recreated what he could of the 97 SE using the 04 SE HD broadcast, using the AC3 from the Laserdisc. I believe the Laserdisc audio is also the grounds for the Revisited versions due to the much better sound quality.