Playing copy protected DVD

tombenko · 2017-10-29 20:19:21

Hail!
I bought some DVD-s for my sons for the week, but I can't play them. Other movies was correctly played, but those are not with us. The only difference I found is these discs are copy protected (and some are double layered). Parole's output:

parole

** (parole:16369): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-0j1qwAtZkb: Kapcsolat elutasítva
libdvdread: Can't stat /dev/dvd
Nincs ilyen fájl vagy könyvtár
libdvdread: Could not open /dev/dvd

I have installed libdvdcss, libdvdnav and libdvdread, the player is Parole. The discs not even shown in Thunar, nor in /dev (the /dev/sr0 file is empty).

ewaller · 2017-10-29 20:50:02

We are not going to be discussing libdvdcss on these forums as it well into the grey area of legality. But, I don't think this is your problem. The disks should be at least readable by the system.

What do you mean that /dev/sr0 is empty? Does it exist? These other movies that work, they too are DVD's?
Does /dev/dvd exist?
What is the output of lsblk with these DVDs loaded. How about with a working disk loaded?
Do these DVDs play on a stand alone player?

headkase · 2017-10-29 21:24:12

If your system can't read the disc at all then I would side with ewaller: either your drive or the disc are likely damaged. CSS restrictions only apply to decrypting the disc, not reading its contents.

Edit: There is also a possibility that the drive and disc are fine and it could be the cables between your mainboard and drive. It could also be a possible software problem which you can rule out by trying to mount a known good disc as ewaller said.

Last edited by headkase (2017-10-29 21:30:12)

progandy · 2017-10-29 21:41:38

If other dvds work fine, then maybe it is a region code mismatch. I don't know what errors that would show, so that is a guess only. What does dmesg show when you insert and try to read one of these dvds?

Edit: Probably wrong, you should be able to at least read it in a file browser...

Last edited by progandy (2017-10-29 21:56:35)

headkase · 2017-10-29 21:47:22

That's a good point too progandy. Also: you get five region changes before the drive will stay locked to the last region selected. There is a factory tool that can give you more changes but it isn't indefinite: at some point if you keep changing the region then the drive will get locked to whatever the region was for the last disc when you run out of changes.

Related, but for this thread just informational purposes, Bluray drives are also region locked but it isn't done in hardware for them. At least on Windows reinstalling your system (or digging out the extremely well hidden setting) will restore your region changes for a Bluray drive. Since Bluray region changes are in software as long as you can reset the setting that holds the region-left count then you can indefinitely change your region with a Bluray drive.

Last edited by headkase (2017-10-29 21:49:05)

headkase · 2017-10-29 21:55:12

And, this is the grey area ewaller mentioned. You can also use MakeMKV to turn your DVD into a video file:

https://aur.archlinux.org/packages/makemkv/

Your legal rights to do so however completely depend on where you live. ewaller might delete this post about MakeMKV if he believes it strays too far out of the grey legal area.

MakeMKV doesn't care at all about regions so if you're having region issues then MakeMKV is a possible solution.

Bluray to video file is a premium feature (but still free with a temporary product key on the MakeMKV forums that is updated regularly for now) and DVD functionality to video file will always be free with MakeMKV. Once you rip your disc then you will likely have a large file as MakeMKV doesn't transcode the video, it just decrypts it and turns it into a video file. Once you have the video file then you can use Handbrake to transcode it to a smaller file size.

Last edited by headkase (2017-10-29 22:00:13)

tombenko · 2017-10-29 22:15:29

ewaller wrote:

We are not going to be discussing libdvdcss on these forums as it well into the grey area of legality. But, I don't think this is your problem. The disks should be at least readable by the system.
What do you mean that /dev/sr0 is empty? Does it exist? These other movies that work, they too are DVD's?
Does /dev/dvd exist?
What is the output of lsblk with these DVDs loaded. How about with a working disk loaded?
Do these DVDs play on a stand alone player?

Ok, sorry for libdvdcss. There are /dev/sr0 and /dev/sr1. These two are both 0 sized, and remains 0 for the problem discs. Now we aren't home, so I can't use playable DVD, I didn't took any. /dev/dvd don't exists.

lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 465,8G  0 disk 
├─sda1   8:1    0   512M  0 part /boot
├─sda2   8:2    0     4G  0 part [SWAP]
├─sda3   8:3    0    25G  0 part /
└─sda4   8:4    0 436,3G  0 part /home
sr0     11:0    1   6,7G  0 rom  
sr1     11:1    1    71M  0 rom

I'll try a standalone player at home, but this will happen next weekend. But as I rememeber, this was happened before, and the discs was palyable by a DVD-player. The discs probably not wrong, I bought four, and all of them are the same.

Some dmesg output:

[23121.378257] sr 1:0:0:0: [sr0] tag#14 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
[23121.378274] sr 1:0:0:0: [sr0] tag#14 Sense Key : 0x5 [current] 
[23121.378285] sr 1:0:0:0: [sr0] tag#14 ASC=0x6f ASCQ=0x3 
[23121.378297] sr 1:0:0:0: [sr0] tag#14 CDB: opcode=0x28 28 00 00 35 62 80 00 00 40 00
[23121.378306] print_req_error: I/O error, dev sr0, sector 13994496
[23121.551515] sr 1:0:0:0: [sr0] tag#16 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
[23121.551527] sr 1:0:0:0: [sr0] tag#16 Sense Key : 0x5 [current] 
[23121.551534] sr 1:0:0:0: [sr0] tag#16 ASC=0x6f ASCQ=0x3 
[23121.551542] sr 1:0:0:0: [sr0] tag#16 CDB: opcode=0x28 28 00 00 35 62 bf 00 00 01 00
[23121.551548] print_req_error: I/O error, dev sr0, sector 13994748
[23121.551565] Buffer I/O error on dev sr0, logical block 3498687, async page read

Arch Linux

#1 2017-10-29 20:19:21

Playing copy protected DVD

#2 2017-10-29 20:50:02

Re: Playing copy protected DVD

#3 2017-10-29 21:24:12

Re: Playing copy protected DVD

#4 2017-10-29 21:41:38

Re: Playing copy protected DVD

#5 2017-10-29 21:47:22

Re: Playing copy protected DVD

#6 2017-10-29 21:55:12

Re: Playing copy protected DVD

#7 2017-10-29 22:15:29

Re: Playing copy protected DVD

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