Ok so I went with a re-encode for this movie and ran it through Rempg2 @ 85% , re-muxed it back with Ifoedit and now have a 4.29gb collection of vob's ( kept english menu and ac3 audio )

Now for the problem the video chapters play in the wrong order but the audio plays correct ( which you would expect as I didn't touch the audio ) anyone have any ideas what I did wrong this time ?

All help appriciated