I have all my PAL VHS collection (Fullscreen, Widescreen, Executor Box Set) on an external HDD as well as about half of my "Star Wars collection" so I can check versions with a few mouse clicks......
All versions need capturing and preserving. There is no such thing as too many!!
Meanwhile, here are my Youtube clips for info
http://originaltrilogy.com/forum/topic.cfm/OBITUARY-Star-Wars-Fullscreen-Pan-and-Scan-versions-RIP/post/552473/#TopicPost552473