Figured out some basic avisynth and found this on doom9:
"BAD TELECINES. Frequently, Hong Kong DVDs (and those from other areas sometimes, also) are badly telecined and leave you with 4 of 5 frames interlaced. Those people should be shot for ruining perfectly good film material (?No trial, no jury-just straight to execution?-Pulp Fiction). Just as in the previous example, if there's at least one progressive frame in each series of 5, then I'll go ahead and IVTC (but this time with the standard Telecide(Guide=1).Decimate(5)). Many DVDs come with fields already blended and after IVTC many will still remain as blended frames. It?s pretty much impossible to completely undo the damage from an improper telecine job. You can only hope that the resulting video will play smoothly and the blended frames won?t be too noticeable."
That pretty much descibes what I have here. I'll do some trial and error starting with telecide (guide=1).Decimate(5).
I'll keep you posted.
But apart from the HK DVD, what's with ITU-R. Do you use it on clean PAL DVDs? I've done some reading on D9 and so far I have the impression it's an ideological thing (lots of guys arguing over and over...).
Thanks btw.