[mythtv-users] Import DVD

Scott list-mythtv at bluecamel.eml.cc
Tue Apr 17 00:52:42 UTC 2007


On Apr 16, 2007, at 6:01 PM, Don Bossung wrote:
> Scott, hope you are still monitoring this.
>
> I am trying your script and the first problem I ran into is the  
> ddrescue I
> dl'd with yum (fc5) the options were totally different than the  
> version you
> cited in your script. The response from -V is
>
> dd_rescue Version 1.10, garloff at suse.de, GNU GPL
>
> I was able to come up with this usage of the command which I think is
> comparable to yours
>
> ddrescue -v  -b 2048 /dev/dvd /video/movies/dvd/tgn.iso
>
> And it ran for 20 hours and ripped about 10000 512B blocks which was
> ridiculous. So this version has a 'reverse' option that rips the  
> disk in
> reverse and (-r) I am trying that now. Could you give a little more  
> detail
> about the ddrescue you use and some time values for ripping a disk?

There are two different versions of ddrescue floating around:

GNU ddrescue:
http://www.gnu.org/software/ddrescue/ddrescue.html

Kurt's dd_rescue:
http://www.garloff.de/kurt/linux/ddrescue/

I used the GNU ddrescue for my script. For a "tough" DVD you might  
try the following two pass method:

1) Get as much as you can first pass:
ddrescue --verbose --no-skip --block-size=2048 /dev/dvd /var/movies/ 
dvd/tgn.iso /var/tmp/tng_ddrescue.log

2) Test it out. If it plays fine then you're done.

3) Second pass to attempt to get more data from the 'bad spots'
ddrescue --verbose --block-size=2048 /dev/dvd /var/movies/dvd/ 
tgn.iso /var/tmp/tng_ddrescue.log

Which DVD are you trying to copy? Is it damaged from scratches or is  
it a Sony Pictures or Columbia Pictures DVD with ARccOS?

A bit more about my experience using the above method. Casino Royal  
took 10hrs. I canceled the the second pass with about 100mb left and  
had no issues playing the ISO file from xine. Silent Hill I let run  
for 15hrs. Not sure it's fully copied yet as I haven't played it.   
There were some others I don't recall off the top of my head that had  
ARccOS on them that I've had copied in 3-4hrs.

So yeah, it's time consuming. If you want the whole ISO it seems like  
the way to go though.  On the other hand, if you just want the main  
movie you can use something like mplayer or vlc to save the output  
stream as it plays.

More about ARccOS: http://en.wikipedia.org/wiki/ARccOS_Protection

Hope this helps.

--
Scott 


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