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Re: What to do with a DVD-RW +VR disk? UDF file system



On Sat, 24 Sep 2011 10:03:11 +0000, Camaleón wrote:

> On Fri, 23 Sep 2011 20:48:35 +0000, Hendrik Boom wrote:
> 
>> On my Toshiba D-VR7KC2 DVD recorder I have recorded some video on a
>> DVD- RW, using the +VR recording format.
> 
> Is the disc finalized? 

Thanks.  That was a ggod question.  It is, now.

> Can it play in another DVD video reader?

It plays on the DVD recorder it was recorded on.  I don't have another 
DVD player on hand.

the DVD drive I have on this machine (an ASUS EEEPC) is an LG USB DVD 
drive.

> 
>> But I'm unable to play it on my wheezy system in either VLC or the
>> Gnome Mplayer.
> 
> I would launch those programs from command line and read the output
> error, maybe it gives some clue about the failure.

Did that.  No joy;  Details  follow.

Opening vlc from the command line, and attempting to open /dev/dvd (the 
choice it gives me):


hendrik@notlookedfor:~$ 
hendrik@notlookedfor:~$ vlc
VLC media player 1.1.11 The Luggage (revision exported)
Blocked: call to unsetenv("DBUS_ACTIVATION_ADDRESS")
Blocked: call to unsetenv("DBUS_ACTIVATION_BUS_TYPE")
[0x9d108fc] main libvlc: Running vlc with the default interface. Use 
'cvlc' to use vlc without interface.
Blocked: call to setlocale(6, "")
Warning: call to srand(1316625008)
Warning: call to rand()
Blocked: call to setlocale(6, "")

(process:3130): Gtk-WARNING **: Locale not supported by C library.
	Using the fallback 'C' locale.
Warning: call to rand()
Warning: call to rand()
Warning: call to rand()
Warning: call to rand()
libdvdnav: Using dvdnav version 4.1.3
libdvdread: Using libdvdcss version 1.2.10 for DVD access
libdvdread: Can't stat /dev/dvd
No such file or directory
libdvdread: Could not open /dev/dvd
libdvdnav: vm: failed to open/read the DVD
libdvdread: Using libdvdcss version 1.2.10 for DVD access
libdvdread: Can't stat /dev/dvd
No such file or directory
libdvdread: Could not open /dev/dvd
[0xb4c0439c] dvdread demux error: DVDRead cannot open source: /dev/dvd
[0x9ffe40c] main input error: open of `dvd:///dev/dvd' failed: (null)

and in vlc's message window:

Playback failure:
DVDRead could not open the disc "/dev/dvd".
Your input can't be opened:
VLC is unable to open the MRL 'dvd:///dev/dvd'. Check the log for details.

Now there appears to be no /dev/dvd, as tetified by ls in another shell 
window:

hendrik@notlookedfor:~$ ls -l /dev/dvd
ls: cannot access /dev/dvd: No such file or directory
hendrik@notlookedfor:~$ 


So the first step seems to be to find out why there's no /dev/dvd.


But I did find a device /dev/video0.


hendrik@notlookedfor:~$ ls -l /dev/video0
crw-rw----+ 1 root video 81, 0 Sep 24 10:48 /dev/video0
hendrik@notlookedfor:~$ 

Not sure what /dev/video0 is, but I tried it.  Typing it into the open 
media dialog gets me no further:

libdvdnav: Using dvdnav version 4.1.3
libdvdread: Using libdvdcss version 1.2.10 for DVD access
libdvdnav: Can't seek to block 32
libdvdnav: Unable to find map file '/home/hendrik/.dvdnav/.map'
libdvdread: Can't seek to block 256
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdread: Can't seek to block 256
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
libdvdnav: vm: failed to read VIDEO_TS.IFO
libdvdread: Using libdvdcss version 1.2.10 for DVD access
libdvdread: Can't seek to block 256
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdread: Can't seek to block 256
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.BU.
[0xa06b084] main input error: open of `dvd:///dev/video0' failed: (null)

and 

Your input can't be opened:
VLC is unable to open the MRL 'dvd:///dev/video0'. Check the log for 
details.

Not sure where to go next.  An I missing device drivers?  Do I need a 
kernel module for the UDF file system?  Some other packages?

For the record,

hendrik@notlookedfor:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 04f2:b071 Chicony Electronics Co., Ltd 2.0M UVC 
Webcam / CNF7129
Bus 002 Device 002: ID 046d:c52f Logitech, Inc. Wireless Mouse M305
Bus 001 Device 005: ID 152e:1640 LG (HLDS) 
hendrik@notlookedfor:~$ 

-- hendrik

(...)


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