I now succeeded with patching the vob file, but I still dont understand why it works
The DVD is flagged as 16:9, plays back at 16:9
DVD Fab is showing the movie as flagged 16:9 during the rip.
The preview within DVD Fab also shows it in correct aspect ratio.
The ripped VOB File is flagged as 16:9, it plays back with stretched width. When i patch the VOB to 4:3 on the entire file, it plays back correctly.
I doublechecked if the dvd is really playing back in 16:9 mode on my standalone player. It does
On the original ripped vob, when i change the aspect in vlc from standard to 16:9, the aspect range changes from streched to correct.
On the vob i did patch to 4:3 the aspect in vlc is correct from the start, switching manually to 16:9 ratio in vls is not changing anything, still correct.