American Graffiti. On the DVD version the opening shot was replaced with a cgi sky and they changed the color timing and title card ,plus they used DVNR.

The updated version may or may not be on the signature collection discs, so capping the first issue letterbox THX release before any changes would be nice.

THX 1138 is already in good hands on these boards.

The Phantom Menace theatrical cut won't be on the Blu ray, perhaps someone can take another shot at capping the laserdisc, or using the blu ray and editing the video and audio back to the theatrical, but that is a reconstruction not a preservation.