It's streched out to approx. 2.35:1 in VLC, which makes me suspect the Sequence_Display_Extension (SDE) in the VOBs is set to some (odd) value. I know for a fact that VLC does include SDE in it's aspect ratio decision, whereas other players, and hardware players, pretty much all ignore it and just follow the IFOs.
Stephe, can you please load one or all of the main movie VOBs into
DGIndex (comes after HCenc, "DGMPGDec"), hit Play (F6) and report what the info box says at "Frame Size", "Display Size" and "Aspect Ratio"?