[mythtv-users] DVD Error - [sr0] unaligned transfer

[Brian Wood]

On Monday 18 January 2010 08:23:47 am Brian Wood wrote:
> On Monday 18 January 2010 08:05:47 am coffee wrote:
> > I guess Iam new to the list although I did get it probably a few years
> > ago. Nice to be back on the list.
> > I would like to say that Iam very impressed with Mythtv and the coders.
> > I started using mythtv at around
> > version .18 and it has really improved.
> >
> > I noticed that after getting MYTV installed that I cannot watch DVDs.
> > Iam getting the following error in my
> > logs: mythtv kernel: sr 5:0:0:0: [sr0] unaligned transfer.
> >
> > The dvd drive is known working. Originally I thought this might be a bad
> > DVD but it happens on every dvd put in.
> > The dvd will play the beginning intro (the short Studio Intro) and then
> > goes back to the play dvd menu.
> >
> > Well, Here is some info on the system :
> >
> > Log File:
> >
> > Jan 18 00:02:17 mythtv kernel: sr 5:0:0:0: [sr0] unaligned transfer
> > Jan 18 00:02:17 mythtv kernel: sr 5:0:0:0: [sr0] unaligned transfer
> > Jan 18 00:02:18 mythtv gnome-keyring-daemon[2239]: adding removable
> > location: volume_label_QUARANTINE at /media/QUARANTINE
> > Jan 18 00:02:19 mythtv kernel: attempt to access beyond end of device
> > Jan 18 00:02:19 mythtv kernel: sr0: rw=0, want=13330436, limit=2097151
> > Jan 18 00:02:19 mythtv kernel: Buffer I/O error on device sr0, logical
> > block 3332608
> > Jan 18 00:02:19 mythtv kernel: attempt to access beyond end of device
> > Jan 18 00:02:19 mythtv kernel: sr0: rw=0, want=13330436, limit=2097151
> > Jan 18 00:02:19 mythtv kernel: Buffer I/O error on device sr0, logical
> > block 3332608
> >
> > System Specs:
> >
> > Linux mythtv.athome.net 2.6.30.10-105.fc11.x86_64 #1 SMP Thu Dec 24
> > 16:41:51 UTC 2009 x86_64 x86_64 x86_64 GNU/Linux
> >
> > Myth Version .22
> >
> > Fedora Core 11
> > [root at mythtv log]# dmesg |grep sr0
> > sr0: scsi3-mmc drive: 48x/48x writer cd/rw xa/form2 cdda tray
> 
> Try taking Myth out of the equation, can you play a DVD with other
>  software? Xine?
> 
> From what I see, it doesn't look like a Myth problem, but that's easy to
>  test. _______________________________________________
> myth

Also have a look at:

http://www.linuxquestions.org/questions/linux-hardware-18/dvd-automount-fails-
with-cdrom-not-ready-yet-and-unaligned-transfer-770096/