[MPlayer-users] Problems with UDFFindFile

[Reimar Döffinger]

On Mon, Mar 28, 2011 at 04:00:00PM -0700, Kip Warner wrote:
> On Mon, 2011-03-28 at 00:02 +0200, Reimar Döffinger wrote:
> > > It's very strange because the disc is mounted as a regular iso9660
> > > filesystem.
> > 
> > Most likely that's not strange but the problem. DVDs need to have a UDF filesystem, and you probably burned it only with iso9660.
> > And mounting it is pointless. Well, unless maybe if you give the actual path instead of the device name to -dvd-device, though I think that won't actually make a difference.
> 
> Hey Reimar. I think you might be right, but I have burned DVDs as
> regular iso9660 and had them playback on standalone vanilla DVD players
> without any trouble.

They probably support both. I think there was once a patch for libdvd*
to use both, but I don't know if it was applied or if it was how to
select between them.

> sr 1:0:0:0: [sr0] Unhandled sense code
> sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
> sr 1:0:0:0: [sr0] Sense Key : Medium Error [current] 
> sr 1:0:0:0: [sr0] Add. Sense: L-EC uncorrectable error
> sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 3e db c1 00 00 02 00
> end_request: I/O error, dev sr0, sector 16477956
> Buffer I/O error on device sr0, logical block 4119489
> Buffer I/O error on device sr0, logical block 4119490
> 
> 
> This is very strange. I wonder if this is a silly DRM issue?

Na, that is around the end of the DVD. I'd guess the UDF file
system structures may have pushed the size to be too large for
DVD. Or you had just bad luck (I guess the chances for bad luck
are quite a bit higher for the combination second layer/outer
border of disk).