If anyone is interested, I have the spanish castilian audios from the 1995 VHS tapes. (they are the same tracks used in the spanish LaserDiscs)
The main difference between them and the GOUT DVD's tracks are that the opening crawls are narrated.
Also in TESB and ROTJ, before the Lucasfilm logo, there is no 20th Centrury Fox Fanfare, because they used a CBS Home Video logo instead with it's own music.
I have TSEB and ROTJ syncronized at 23,976 fps with harmy's despezialiced movies. But with SW, I couldn't because I think the 1995 LD/VHS tapes has an extra frame in the video, and it's impossible to make it work applying delay with tsmuxer.
If any one want them, just let me know it ;-)