Repairing nv_pck:nv_vobu_ea

[Ghitulescu]

From time to time I manage to have this error in DVD Shrink.

Sometimes I can fix them with FixVTS or IfoEdit, however the resulted VOB is smaller than the original (thus the affected parts are cut out).

It's not ArccoS or similar because it's home made, so everything should be ok, only the nav packs should be corrected.

Is there any tool/method?

Thanks

[Ghitulescu]

The problem was a scratch on the DVDR that altered a bit the content of a VOB file. I don't know why the system passed this silently.

FixVTS and the rest of the software missinterpreted this as a protected disc (I assume because I don't know how FixVTS internally works) and removed the "unreferenced" material (3 "spikes" resulted in 3 cells thrown out, ca. 400MB less).

So I resume the question:

It there any software that "understands" that the logical info is just "slughtly corrupted" and replaces it with a corrected version. In my view it would be like 1 2 3 243 5 6, wherein 243 is obvioulsy wrong and it should be replaced with 4.

[r0lZ]

It's the problem with the bad rippers. They assume an intentional read error for almost any read-error. The good old DVD Decrypter has not that problem, as it considers a read-error as intentional only if it is in a "protected area". However, since it is discontinued, it is not able to cope with the most recent protected DVDs. I suggest to use it for unprotected DVDs, and revert to another ripper only if it fails (or to build a PSL file manually for DVDD but that's not easy!)

[Ghitulescu]

I almost forgot when I used DVD Decrypter for the last time :)

The DVDs were mine, therefore they have no protection. There were 2 discs containing the same subject, done long time ago when DVDR DL were not even planned. Now I wanted to combine them into one DVDR DL.

Skaleton pointed out how to reauthor a new DVD with DVD Shrink, and this is what I did. DVD Shrink complained about the nv_pck, later on I've copied all the files on HDD, just to notice the error (the DVDR is still ok with my SAP ;)).

So it apeears that there is no software that can correct erroneous info in the control data :(

[r0lZ]

The drive itself can theoretically repair some minor read-errors, but some drives are worse than others. An old laser can also be responsible of the read errors. Of course, the disc surface is also important.
DVDD will NOT let you copy bad sectors without informing you. That's the good point, as you can try to clean the disc, or rip it in another drive. I still use DVDD to rip all my DVDs!