Re: [gentoo-user] Re: Cloning movie DVDs with dd - only works after accessing disk with another command?

2009-08-12 Thread Richard Marza
- Original Message - From: Stroller strol...@stellar.eclipse.co.uk To: gentoo-user@lists.gentoo.org Sent: Tuesday, August 11, 2009 4:22 PM Subject: Re: [gentoo-user] Re: Cloning movie DVDs with dd - only works after accessing disk with another command? On 11 Aug 2009, at 20:31

[gentoo-user] Re: Cloning movie DVDs with dd - only works after accessing disk with another command?

2009-08-11 Thread Remy Blank
This is just a wild guess, but could the decryption keys be stored in the DVD drive? Playing the disc with mplayer retrieves the keys (using libdvdread) and sets them in the drive. From that point, the disc is readable by all means. When you change the disc, the keys are not valid anymore. As I

[gentoo-user] Re: Cloning movie DVDs with dd - only works after accessing disk with another command?

2009-08-11 Thread James
Stroller stroller at stellar.eclipse.co.uk writes: Now I've got this new machine with all this space on it (or rather: now I seem to be more interested in doing stuff with this machine I built a while ago), I'm starting on the process of ripping all my DVDs. QDVDauthor is very cool.

Re: [gentoo-user] Re: Cloning movie DVDs with dd - only works after accessing disk with another command?

2009-08-11 Thread Stroller
On 11 Aug 2009, at 16:28, James wrote: Stroller stroller at stellar.eclipse.co.uk writes: Now I've got this new machine with all this space on it (or rather: now I seem to be more interested in doing stuff with this machine I built a while ago), I'm starting on the process of ripping all my

[gentoo-user] Re: Cloning movie DVDs with dd - only works after accessing disk with another command?

2009-08-11 Thread Grant Edwards
On 2009-08-11, Stroller strol...@stellar.eclipse.co.uk wrote: I'm just really curious why `dd` works perfectly fine the last time, but not the first. Hasn't this been answered several times already? Presumably it works the second time but not the first time because between the two attempts

Re: [gentoo-user] Re: Cloning movie DVDs with dd - only works after accessing disk with another command?

2009-08-11 Thread Stroller
On 11 Aug 2009, at 20:31, Grant Edwards wrote: On 2009-08-11, Stroller strol...@stellar.eclipse.co.uk wrote: I'm just really curious why `dd` works perfectly fine the last time, but not the first. Hasn't this been answered several times already? No, it hasn't. Presumably it works the

Re: [gentoo-user] Re: Cloning movie DVDs with dd - only works after accessing disk with another command?

2009-08-11 Thread Paul Hartman
On Tue, Aug 11, 2009 at 3:22 PM, Strollerstrol...@stellar.eclipse.co.uk wrote: I'm just looking for a better answer than ones prefaced with presumably and which treat DeCSS encryption like it's black magic. I can't give you a definitive answer to your original question but I can hopefully shed

Re: [gentoo-user] Re: Cloning movie DVDs with dd - only works after accessing disk with another command?

2009-08-11 Thread Stroller
Hi Paul, Many thanks for the details synopsis. Some of this was known to me, some not. Comments below. On 11 Aug 2009, at 23:49, Paul Hartman wrote: On Tue, Aug 11, 2009 at 3:22 PM, Strollerstrol...@stellar.eclipse.co.uk wrote: I'm just looking for a better answer than ones prefaced with