[DVDnav-discuss] dvdbackup and the skipping unused/bad sectors patch

[Nico Sabbi]

Il giorno dom, 08/02/2009 alle 23.46 +0100, Benjamin Drung ha scritto:
> Hi,
> 
> Don Mahurin has modified [1] dvdbackup [2] to find and avoid unused
> blocks by following title set titles, and then skips the unused blocks.
> The purpose of this modification is to avoid possible bad sectors that
> sometimes occur, by manufacturer defect or intention, in unused regions
> of the disc.
> 
> The titleset titles are followed using libdvdread and "libdvdvm"
> extracted from libdvdnav. The "libdvdvm" parts are not perfect, as some
> jump instructions are skipped to avoid the actual execution of the Jump,
> which fails in this isolated use of the library.
> 
> It would be nice if this "libdvdnav" could be separated from libdvdnav
> into a standalone library. In libdvdnav 4.1.3 there is already an
> directory called vm.
> 
> [1] http://dvdbackupx.openright.org/
> [2] http://dvdbackup.sourceforge.net/

queued as well. Thanks for reminding.
Unfortunately it's not an easy task cleaning those patches: i remember
that I had some objection when I gave them a look