[MPlayer-users] MPlayer hangs playing 'Sony Pictures' DVDs.

Alexander Roalter roalter at cs.tum.edu
Mon Feb 27 20:25:37 CET 2006


The Wanderer wrote:
> "Restricting the circumstances under which a legitimate user may read
> the data, for purposes of limiting the things which such a user can do
> with the data" may be considered to constitute DRM, I think. Certainly
> the people who arranged for the bad sectors to be present were intending
> them to prevent the data from being accessed except in the ways those
> people wanted to allow; very likely, they were intending to prevent the
> data from being used in any way which creates a copy. If you see any
> problems in that, feel free to point them out...

I know it is quite a minefield, but one thing still applies: even if the 
sectors would not be damaged (as would be the case with a copied DVD 
from such a DVD, as the current copying tools do (they overread simply 
the defective sectors), you have a VOB file with jumps in it which make 
sense if you implement the standard correctly, otherwise you get one 
sector of data followed by e.g. 10 sectors of zero. followed by video 
data again. It is merely an improvement upon the DVD standard (not the 
copy protection, I meant the better compliance of such a playback 
program), not a patch to mplayer to get some DRM-crap running.

still, it's just my opinion

cheers,
Alex




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