what/when was the technidisc release?
When fox did the quiet reissue of the SWE disc for Star Wars just before the definitive collection came out, they had the different producers repress a corrected version of the shifting aspect ratio transfer. These copies can be designated by having the later Fox logo on the small box on the front center lower edge of the front cover instead of the older copies with cbs/fox. Now, if you can find the copy pressed at Technidisc (only identified by disc inner ring codes) you see that they somehow did their own transfer from a different source. There is no information on this other than it was first seen here and later transferred by some. Easily the best transfer of them all, but only for the first film.