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List:       ubuntu-users
Subject:    Backing up DVD movies
From:       kt-usenet () squeakydolphin ! com (Kenneth P !  Turvey)
Date:       2005-12-31 21:16:53
Message-ID: pan.2005.12.31.21.16.52.286428 () squeakydolphin ! com
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I posted this note to the Ubuntu forum, but I didn't get any response
there.  I probably shouldn't have added it to an old thread.  Anyway, I
thought someone here might be able to help me.  

- --------------------

I'm having some problems with this myself so instead of creating a new 
thread I thought I would just add to this one.

My daughter, two, has figured out how to put her own DVDs in the player 
without any assistance from me. Although I'm quite proud of this feat, 
she hasn't yet learned how to hold a DVD without putting her fingers on 
the recording surface or treating it in such a way that ceases to 
perform as a DVD.

So here I am trying to copy Shrek to a new disk. The old one works fine 
in my computer but is essentially useless on the DVD player we have 
connected to the TV. This is probably only the first of several of her 
shows that I'm going to backup and preserve somewhere that it will be 
safe from grape jam covered fingers.

So here we go...

I've got a dual layer recorder that connects to my laptop using USB. The
recorder works great with Verbatim dual layer disks (but not other 
brands. I've asked BusLink for a firmware upgrade but they don't seem to 
know what their doing. NEC has released the firmware upgrade some time 
ago, but only for internal drives. I can record data to this drive 
without any problems. It works great.

I can also pull the data off the DVDs with dvdbackup and libdvdcss 
without any problems. I have a perfect working copy of shrek on my hard 
drive now that I can play through totem-xine. The menus work, everything 
works.

Unfortunately when I burn it to DVD it doesn't work quite as expected. 
The menus don't work perfectly. There are long delays while it is 
loading. On occassion the disk will freeze at some scene.

The command I'm using to burn the DVD is this:

sudo nice -n -10 growisofs -speed 1 -dvd-compat -Z /dev/dvdrw -dvd-video SHREK

There are two problems with this that I notice write away.

1) It would be better if I could do this in two steps so I could test 
the DVD by mounting the iso image. I think I can do this with mkisofs, 
but I'm not sure if there are options other than the -dvd-video option. 
Even if this works, I'm not sure that mounting the ISO will give me the 
same result as reading directly from the DVD. My laptop is configured 
in such a way that I have to mount the DVD before playing it. I don't 
think this is exactly equivalent to the way the DVD player connected to 
the T.V. works. If anyone has a suggestion on how I can get totem-xine 
to play the DVD without mounting, in the same was as the DVD player 
downstairs does, I would greatly appreciate the information.

2) The second obvious error is that my DVDs are recoreded with all the 
files and directories having lowercase names. This is an obvious 
difference between the original DVD and my copy. I don't know if this 
matters, but it is certainly distressing that this obvious difference 
exists and that I can't seem to find a way to fix it. The copy on the
hard disk has correct filenames.

What I really want is an exact copy of the Shrek DVD I started with. I 
don't really care if it is encrypted or not. I would prefer that it 
wasn't, but an exact copy would be fine. I understand that simply 
dd'ing the disk won't do. Is there something similar that I can do to 
create an exact copy?

Any assistance would be greatly appreciated.

Thanks.

- -- 
Kenneth P. Turvey <kt-usenet at squeakydolphin.com> 
http://kt.squeakydolphin.com (not much there yet)
Jabber IM: kpturvey at jabber.org
Phone: (314) 255-2199
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