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Ghitulescu
1st December 2010, 15:37
Well, I've managed to scratch one of my unique DVDs, like anticipated by Murphy's laws.

It contains 1 audio, 2 subs and 1 video. The copy I have is unfortunately a DVD5. To keep the damage at a minimum I thought that I could replace only the damaged portion, a few seconds long, from the DVD9 with the corresponding part of the DVD5.

I have found several threads that confirm my suspicions that while the video may be correctly cut (at GOP boundaries), the audio might not be (http://forum.doom9.org/showthread.php?p=803627&highlight=vobu+audio+cut#post803627, http://forum.doom9.org/showthread.php?p=792352&highlight=vobu+audio+cut#post792352, http://forum.doom9.org/showthread.php?p=784539#post784539). The threads concern exactly the tools I intended to use, VobBlanker, PgcEdit and DVDShrink.

Did the situation improved since then, or do I have to use the longer route (ie demux & stuff)?

PS: the DVD5 was processed from DVD9 with dvdrb and cce long time ago, but I tend to think that the GOP structure was not kept.
setarip_old
1st December 2010, 18:30
Try ISOPuzzler for recovery...
Ghitulescu
1st December 2010, 18:50
I did :(
President
10th March 2011, 09:42
Ghitulescu,
You can try to carefully polish your DVD. Like there (http://www.youtube.com/watch?v=1zpEYqdLXWo).

PS. Before you starts polish a main DVD just try this method on any unneeded/unused DVD, of course.
peppi_le_piou
10th March 2011, 12:35
I'll confirm that disc polishing does work. For a bad scratch I have used a car paint cutting compound with 2000 grade Wet & Dry paper and just cut the problem area. It leaves it very dull but then use fine polish or Brasso, then finished off with white toothpaste (not the Gel type) and wash it with water.

You can verify if all is good by running it through DVD Decrypter and gets no read errors. Burn a new copy.
Taurus
10th March 2011, 14:12
Did you try H2CDImage from german ct magazin?
Well, this has always been my last resource.
Surely you will need as many DVD readers you can get hold on to do the task.
But it's worth it.
It was a lifesaver for me in the past :p
Ghitulescu
10th March 2011, 20:51
It looks like ISOpuzzle (and another copier of the '80ies but for floppies) in concept.