On Sat, Sep 15, 2012 at 8:40 AM, Matt Graham <
danceswithcrows@usa.net>wrote:
> From: Dazed_75 <lthielster@gmail.com>
> > I was able to "dd if=/dev/sr0 of=/dev/null bs=1M count=5" as you
> > suggested so I did the whole thing with of=japanese.iso and tried
> > mounting that with Archive Mounter with no success
>
> It's definitely a data DVD of some type, then.
>
> > Lastly I used hd [to write] some of it to a file
>
> The strings in the file say that it was supposed to be UDF. However, if
> you
> try to mount it as UDF, it says something like "can't find a superblock at
> the
> end of the image". If it's supposed to be UDF, then the first thing I'd
> try
> is to dd the whole thing to a file, then run fsck.udf on that file, and
> see if
> that can reconstruct the superblock or at least make the first few VOB
> files
> readable. Note that the fsck you need may be called udffsck, and it might
> not
> be installed. The fsck for UDF should be available on all distros.
>
I could not find it anywhere While searchung Synaptic for it I did fins
dares and dares-qt. It found 53 files and built a recover.iso but that
does di not seem to be helpful either.
>
> It may also be that it was burned as a multisession DVD and never fixated,
> or
> it had 2 sessions and the second session was messed up. "cdrecord -toc
> dev=/dev/scd0" will tell you how many sessions it has.
>
larry@hammerhead:cdrecord -toc dev=/dev/sr0
Device type : Removable CD-ROM
Version : 5
Response Format: 2
Capabilities :
Vendor_info : 'HL-DT-ST'
Identification : 'DVDRAM GH22NS50 '
Revision : 'TN02'
Device seems to be: Generic mmc2 DVD-R/DVD-RW.
Using generic SCSI-3/mmc DVD-R(W) driver (mmc_mdvd).
Driver flags : SWABAUDIO BURNFREE
Supported modes: PACKET SAO
first: 1 last 1
track: 1 lba: 0 ( 0) 00:02:00 adr: 1 control: 4 mode: -1
track:lout lba: 1989840 ( 7959360) -1:59:74 adr: 1 control: 4 mode: -1
larry@hammerhead:
Me, I don't see anything helpful there. If it were made as mult-session,
only one session recorded and it was never finalized, what would I expect
to see? More sessions? I don't see any indication.
> > try to get some details from her brother about how he
> > made it. I doubt that she will be able to.
>
> If the DVD is damaged at the very edge, where the fs said it was looking
> for
> the superblock, or there's multisession oddness going on, that could cause
> the
> problems you reported.
>
> --
> Matt G / Dances With Crows
> The Crow202 Blog: http://crow202.org/wordpress/
> There is no Darkness in Eternity/But only Light too dim for us to see
>
>
> > On Thu, Sep 13, 2012 at 8:02 AM, Matt Graham
> <danceswithcrows@usa.net>wrote:
> >
> > >
> > > Are you sure this is actually a DVD, and not something weird like a
> > > DVD-sized
> > > SVCD? All the DVDs I've seen and heard about can be mounted as either
> > > iso9660
> > > or udf. Can you do something like "dd if=/dev/sr0 of=/dev/null bs=1M
> > > count=5"
> > > and not get an I/O error? That command should error out on something
> like
> > > an
> > > SVCD that doesn't have 2048-byte sectors. If dd'ing the first few M
> > > actually
> > > works, then the filesystem on the DVD is probably messed up in some way
> > > that
> > > this old player can handle, but other things can't.
> > >
> > > If this is a VCD-like thing, then vcdxrip may be able to get the video
> > > stream
> > > off the device, and mplayer can play VCDs.
> > >
> > > > larry@hammerhead:~$ regionset /dev/sr0
> > > > drive plays discs from region(s):, mask=0xFF
> > > > So I think you are right that yours was not set for any region as was
> > > mine
> > >
> > > Then it's probably not region problems.
> > >
> > > --
> > > Matt G / Dances With Crows
> > > The Crow202 Blog: http://crow202.org/wordpress/
> > > There is no Darkness in Eternity/But only Light too dim for us to see
> > >
> > > ---------------------------------------------------
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> >
> >
> >
> > --
> > Dazed_75 a.k.a. Larry
> >
> > Please protect my address like I protect yours. When sending messages to
> > multiple recipients, always use the BCC: (Blind carbon copy) and not To:
> or
> > CC:. Remove all addresses from the message body before sending a
> Forwarded
> > message. This can prevent spy programs capturing addresses from the
> > recipient list and message body.
> >
>
> > ---------------------------------------------
> > Attachment: jdump.txt
> > MIME Type: text/plain
> > ---------------------------------------------
>
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--
Dazed_75 a.k.a. Larry
Please protect my address like I protect yours. When sending messages to
multiple recipients, always use the BCC: (Blind carbon copy) and not To: or
CC:. Remove all addresses from the message body before sending a Forwarded
message. This can prevent spy programs capturing addresses from the
recipient list and message body.
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