The DEP all checks out OK, but....
I have got it to work :D, and all under my regular limited account.
The secret was to disable pathplayer. If it is set to on or auto DVDfab will crash everytime (I've retested several times).
I thought I would attach the disc info page as perhaps the potential bad sector stuff was causing the problem. At least it might mean more to somebody more knowledgeable than myself.
Thank you for your time and assistance.
Info for drive [E:] (DVDFab Platinum 126.96.36.199)
Drive region: 4
Disc type: Video DVD
Disc region: 2, 4
Volume name: JAWS
Video standard: PAL
Layer 0 size: 2078448 sectors (4059 MBytes)
Layer 1 size: 2078448 sectors (4059 MBytes)
CSS (Content Scramble System) protection is removed!
RC (Region Code) protection is removed!
RCE (Region Code Enhancement) protection is not found.
APS (Analog Protection System) protection is removed!
UOPs (User Operation Prohibitions) protection is removed!
Invalid PTTs protection is not found.
Invalid PGCIs protection is not found.
Invalid PGCs protection is not found.
Invalid TMAPs protection is not found.
Invalid CELLs protection is removed!
Invalid VOBUs protection is removed!
Fake vts protection is not found!
Potential bad sector (vts:3 title begin:30839 end:46544) is removed!
1 potential bad sector protections are removed!
Structure protection (ARccOS, RipGuard, etc.) is removed!
PathPlayer is disabled.