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Open Source and information security mailing list archives
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Date: Sun, 25 Nov 2007 18:32:45 +0000 From: Pavel Machek <pavel@....cz> To: Tobias <kaminsky@...swimmer.de> Cc: Robert Hancock <hancockr@...w.ca>, linux-kernel@...r.kernel.org Subject: Re: [REQUEST] Option for skipping unreadable blocks on Video DVD Hi! > > I think that if they are using the normal block layer accesses on the > > DVD device, there may be some retries that occur which are likely > > undesirable in this case since they will just stall playback. If they > > are using SG_IO to feed raw requests into the drive (which I imagine > > they need to do for CSS authentication, etc. anyway), then all error > > handling is passed up to the user application. > > Normal apps like cp are ending because of Input/Output error. > I did some researches and > dd if=/dev/hdc of=image.iso conv=noerror,sync bs=1M > does everything I want for whole Video Dvds. It skips unreadable blocks. > But I get recorded tv shows from friends and there is the same as with > scratched dvds. Now the problem is that there are several .avi files on it. > So I cannot use dd. dd works with files. -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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