[MPlayer-users] Problems with UDFFindFile

[Kip Warner]

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.

Nevertheless, I took your point and burned it again as UDF file system.
Something interesting happened this time.

All the files (VIDEO_TS/*) burned correctly and with proper checksums,
save one file, the last VOB (VTS_01_8.VOB) which did not burn properly.

$ md5sum VTS_01_8.VOB
md5sum: VTS_01_8.VOB: Input/output error

Checking kern.log, I noted...

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?

-- 
Kip Warner -- Software Engineer
OpenPGP encrypted/signed mail preferred
http://www.thevertigo.com
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