I hope this is not a consideration already brought up, but has anyone seen the main feature of the THX DTS disc? It includes clips from the Star Wars trilogy, Indiana Jones trilogy, and Willow, and I am fairly certain the clips from Star Wars are pre-1997 Special Edition (no nuclear ring from Death Star explosion). Also, since it is DVD, the clips are of very good quality, and I'd imagine this is how the Star Wars trilogy would have looked on DVD before the Special Edition releases. Maybe I am late to the game here, but would it be of any use for further preservation consideration?

I found the disc on the 'spleen recently.