Some DVDs kill my drive when ripped

[beandog]

I run into an odd issue with ripping some DVDs now and then. I use dd to copy them directly to my harddrive as an ISO, and sometimes it will die, just giving me an I/O error.

Looking at the system logs, this is what I'll see in the output of dmesg:

[391856.865678] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
[391856.865691] sr 4:0:0:0: [sr0] Sense Key : Illegal Request [current]
[391856.865701] sr 4:0:0:0: [sr0] Add. Sense: Read of scrambled sector without authentication
[391856.865719] end_request: I/O error, dev sr0, sector 243496
[391856.865729] Buffer I/O error on device sr0, logical block 30437
[391856.865753] Buffer I/O error on device sr0, logical block 30438
[391856.865760] Buffer I/O error on device sr0, logical block 30439
[391856.865770] Buffer I/O error on device sr0, logical block 30440
[391856.865781] Buffer I/O error on device sr0, logical block 30441
[391856.865792] Buffer I/O error on device sr0, logical block 30442
[391856.865804] Buffer I/O error on device sr0, logical block 30443
[391856.865813] Buffer I/O error on device sr0, logical block 30444
[391856.865820] Buffer I/O error on device sr0, logical block 30445
[391856.865830] Buffer I/O error on device sr0, logical block 30446
[391856.948519] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
[391856.948527] sr 4:0:0:0: [sr0] Sense Key : Illegal Request [current]
[391856.948535] sr 4:0:0:0: [sr0] Add. Sense: Read of scrambled sector without authentication
[391856.948547] end_request: I/O error, dev sr0, sector 243584


Has anyone ever had something happen to them?

To be able to rip something again, I'll have to reboot my box.

[Henrikx]

libdvdcss?

[nm]

I run into an odd issue with ripping some DVDs now and then. I use dd to copy them directly to my harddrive as an ISO, and sometimes it will die, just giving me an I/O error.

Try "opening" the disc first by playing it back with a player that uses libdvdcss. For example in a script, play 1 second with mplayer:
mplayer dvd://1 -endpos 1 -vo null -ao null

After this dd might work better.

Another option is to use dvdbackup, which can also remove CSS from the ripped files so that the movie doesn't need to be descrambled on playback. dvdbackup can be combined with ddrescue (http://www.cmdln.org/2010/01/22/backing-up-disney-dvds/) to rip some discs protected with ARccOS/RipGuard/...

[beandog]

Try "opening" the disc first by playing it back with a player that uses libdvdcss. For example in a script, play 1 second with mplayer:
mplayer dvd://1 -endpos 1 -vo null -ao null

After this dd might work better.

Wow, that totally worked ... awesome :D I never would have guessed.

Thanks!