DVD ISO copy weirdness

[Steven Stern]

On 12/29/2011 10:07 AM, 夜神　岩男 wrote:
> I bought a new movie on DVD the other day for my kid (Christmas and
> all...). I wanted to back it up because I've noticed a few of my older
> DVDs don't play correctly anymore (blocky in spots or don't play period
> but are studio cuts that used to work!).
> 
> Normally I just put a DVD in the drive, select "Copy disk..." and move
> through the dialogue to save it to an .iso. Later I can either have the
> computer or the player play it from anywhere in the house.
> 
> Simple.
> 
> But today this one is acting strangely. It is giving me a css key error,
> which is weird, because this is not BlueRay or anything, and it works
> just fine in the ancient for-TV DVD player, so its nothing new.
> 
> Beyond that, I can open the disk up and see the typical DVD directories:
> {VIDEO,AUDIO}_TS
> 
> Looking in VIDEO_TS to see what's the matter, everything can be played
> just fine. No CSS problems. The DVD works in Media Player, VLC, etc.
> just fine. I can run each individual chapter segment as well. But the
> total size of VIDEO_TS claims to be 46GB, about 10 times bigger than it
> should be... and I'm not going to copy 46GB just to get a movie. It was
> a good movie, but not THAT good.
> 
> Any ideas?

What happens if you use

   dd if=/dev/sr0 of=dvd.iso

That should ignore the file system and just copy block for block.

-- 
-- Steve