[vlc] Re: Sudden problem when playing 'Labyrinth' DVD with vlc 0.8.1

[Dag Wieers]

On Sat, 12 Feb 2005, Mark Moriarty wrote:

Hi Mark,

> See what the developers have to say.
> 
> By any chance is it just this one DVD, others play fine?

Yes, no problems whatsoever.


> It does sound like a media error.  You get those sometimes while using TV
> players, too, a hard spot where the DVD "sticks" (freezes), and you have to
> jump ahead to get past it.  The only thing I've ever done is to try a light
> cleaning, soft cloth with a bit of rubbing alcohol -- I'm not saying this is
> good/proper, just that it's something I've done that has worked. 

Well, I have to correct myself from what I said earlier. I do see media 
errors:

	Feb 12 22:56:53 emyn kernel: hdc: media error (bad sector): status=0x51 { DriveReady SeekComplete Error }
	Feb 12 22:56:53 emyn kernel: hdc: media error (bad sector): error=0x30
	Feb 12 22:56:53 emyn kernel: ide: failed opcode was 100
	Feb 12 22:56:53 emyn kernel: ATAPI device hdc:
	Feb 12 22:56:53 emyn kernel:   Error: Medium error -- (Sense key=0x03)
	Feb 12 22:56:53 emyn kernel:   Unrecovered read error -- (asc=0x11, ascq=0x00)
	Feb 12 22:56:53 emyn kernel:   The failed "Read 10" packet command was: 
	Feb 12 22:56:53 emyn kernel:   "28 00 00 24 83 a2 00 00 40 00 00 00 00 00 00 00 "
	Feb 12 22:56:53 emyn kernel: end_request: I/O error, dev hdc, sector 9571976
	Feb 12 22:56:53 emyn kernel: Buffer I/O error on device hdc, logical block 2392994
	Feb 12 22:56:53 emyn kernel: Buffer I/O error on device hdc, logical block 2392995
	...
	Feb 12 22:56:53 emyn kernel: Buffer I/O error on device hdc, logical block 2393056
	Feb 12 22:56:53 emyn kernel: Buffer I/O error on device hdc, logical block 2393057

About 63 blocks. So you were right afterall :)


> (it could be truly bad media, a "bit hit" where the actual DVD is bad and
> even its error correction can not get past things)

I didn't think so because it was only at a single location on the DVD, 
which I thought was unikely. But 63 blocks is not a single location 
anymore :)

Well, maybe VideoLan Client could handle it more gracefully. Skipping 
just a few frames ? None of the DVD players did. They all stopped 
playback. Maybe because 63 blocks is too high a number ? Still...

Anyway, I'm happy this is just a media error. Thanks for your help !

--   dag wieers,  dag at wieers.com,  http://dag.wieers.com/   --
[all I want is a warm bed and a kind word and unlimited power]

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