I did have the same with Dialysis 1 when I copied Rambo.
The process of copy was going well, however, the error message was pop up as Dialysis shown in above when I opened it in PGCEdit. I believe that is something weird.
It was good with ripping by DVDFAB and opening with PGCEdit when I copied RAMBO with Movie Only Model.
Does someone have any idea about it?