I found a new 2004 change.
In Star Wars, Just after Ben is cut down @ 01:30:16:00
There is a close shot of the door being closed in front of Vader, then it cuts to the xtreme wide of the door. On the SE and the GOUT its a clean cut, two clean frames then two frames of pink flash. On the Bluray where it should cut to the wide it goes to two super blown out frames of the same shot then one frame of 100% white then back to match the gout on the last frame of the pink flash.
This has not been changed on the DE 2.7
Ive made a gif to describe this. https://gfycat.com/IdealDemandingFairyfly