I mean, which LD in particular - LDDB catalog number?

AFAIK, there is no Director's Cut laserdisc, hence it could not be in sync with the D-Theater video (that is the DC, right?). Is it possible to take an LD soundtrack, splice it here and there to match the DC, and take the missing pieces from the DVD/BD to fill the holes, but it will be so time consuming...

I spent an entire day (the so-called "Alien LD AC3 Sunday") to capture the LD, try to sync it to BD, recapture the LD (with right settings this time), try to re-sync it to BD, recapture the LD scenes with missing frames, re-sync those scenes... it worth the work, because at the end the result is an untouched AC3 soundtrack, taken from the 70mm version, and it ROCKS!

If I will do it, I'll prefer to do two versions, one theatrical cut with LD soundtrack(s), and one director's cut, with D-Theater/DVD/BD soundtracks. What do you think?