ZigZig said:
2) Is there a dolby EX 6.1 or DTS version on one of the LD versions (I don’t think so)?
The 12-inch LaserDisc releases of the 1997 Star Wars Original Trilogy films where released only in Dolby Digital discrete 5.1 channel bitstreams. There were never separate LaserDisc releases of these films with DTS bitstreams.
Getting off topic: There were separate LaserDisc releases of the first three Die Hard films with DTS bitstreams.