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Sorry for the last offtopic question.
It also appears sometimes while watching the orig. dvd on tv.
Looks like the soogodd review page screens.
Whats this? |
Its looks like your dvd has the dreaded "moving Matte", which are generally low quality mastered dvds. Means you either have to chop off a big bit of the picture to get rid of it in a rip, or just live with the borders jumping up and down.
it happens a lot on asian dvds, probably because
a) the old films the companies just want to kick out and sell with no regard for quality
b) a lot of piracy, so they likewise don't put much effort into making the dvds (which is silly since quality products are the way to defeat piracy)
c) lousy/old source
There's two reasons for matting appearing, firstly is that when capturing they've just put the negatives in a scanner and that's it
Secondly and more commonly MPEG2, the codec used for DVDs, is incapable of knowing what aspect ratio it should be displayed at (generally, ignore anamorphic for now), so to pad out the aspect ratio to how it should look on screen, it needs some black matting added around the picture so the aspect ratio is preserved. MPEG4 on the other hand does not need padding out, since the header contains the resolution info. So when encoding to mpeg4 from dvd, you crop out every single black pixe around the picture, except, in cases like this, you can't because the black pixel borders move up and down the frame.
In most dvds, western especially, these are set, they'll always be xyz pixels off each side so you can just simply crop them off. Unfortunatly you get ones like this where the Matting at the edge of the picture moves, either because the negatives don't center the picture properally, so they need to pad out another side to make up for it, or because the dvd mastering company are just extremely lazy and not correctly dealt with telecining the negative. In this case its the later i'm afraid.
I'm going to put this in the "lower quality" section. Not because its bad in anyway (the split is based upon quality of the source+other things), but because the DVD company has put out a dud author and they've messed up the matting on it. Its annoying when they do this, I've had a lot of them and there's not much you can do to 'counter it', but with old movies that's what we get.
Oh and thanks a lot of the rip, I'm at 56% and see 3 complete sources
