Hi
I have launched a vobcopy one hour ago and it says 1 % while processing one of the 10 .vob files

for the moment I see this in the target directory :

(fred)/home/fred/0784742/VIDEO_TS >ll
total 27264
-rw-r--r-- 1 fred users 18432 avril 30 21:55 VIDEO_TS.BUP
-rw-r--r-- 1 fred users 18432 avril 30 21:55 VIDEO_TS.IFO
-rw-r--r-- 1 fred users 19298304 avril 30 21:56 VIDEO_TS.VOB
-rw-r--r-- 1 fred users 92160 avril 30 21:56 VTS_01_0.BUP
-rw-r--r-- 1 fred users 92160 avril 30 21:56 VTS_01_0.IFO
-rw-r--r-- 1 fred users 4059136 avril 30 22:32 VTS_01_0.VOB
-rw-r--r-- 1 fred users 4325376 avril 30 23:17 VTS_01_1.VOB.partial

the dvd contains :
(fred)/home/fred/0784742/VIDEO_TS >ll /run/media/fred/0784742/*
/run/media/fred/0784742/AUDIO_TS:
total 0

/run/media/fred/0784742/VIDEO_TS:
total 7537688
-r-------- 1 fred users 18432 août 8 2001 VIDEO_TS.BUP
-r-------- 1 fred users 18432 août 8 2001 VIDEO_TS.IFO
-r-------- 1 fred users 19298304 août 8 2001 VIDEO_TS.VOB
-r-------- 1 fred users 92160 août 8 2001 VTS_01_0.BUP
-r-------- 1 fred users 92160 août 8 2001 VTS_01_0.IFO
-r-------- 1 fred users 10350592 août 8 2001 VTS_01_0.VOB
-r-------- 1 fred users 1073635328 août 8 2001 VTS_01_1.VOB
-r-------- 1 fred users 1073655808 août 8 2001 VTS_01_2.VOB
-r-------- 1 fred users 1073664000 août 8 2001 VTS_01_3.VOB
-r-------- 1 fred users 1073457152 août 8 2001 VTS_01_4.VOB
-r-------- 1 fred users 222033920 août 8 2001 VTS_01_5.VOB
-r-------- 1 fred users 71680 août 8 2001 VTS_02_0.BUP
-r-------- 1 fred users 71680 août 8 2001 VTS_02_0.IFO
-r-------- 1 fred users 1073602560 août 8 2001 VTS_02_1.VOB
-r-------- 1 fred users 1073526784 août 8 2001 VTS_02_2.VOB
-r-------- 1 fred users 1011912704 août 8 2001 VTS_02_3.VOB
-r-------- 1 fred users 38912 août 8 2001 VTS_03_0.BUP
-r-------- 1 fred users 38912 août 8 2001 VTS_03_0.IFO
-r-------- 1 fred users 7645184 août 8 2001 VTS_03_1.VOB
-r-------- 1 fred users 20480 août 8 2001 VTS_04_0.BUP
-r-------- 1 fred users 20480 août 8 2001 VTS_04_0.IFO
-r-------- 1 fred users 2396160 août 8 2001 VTS_04_1.VOB
-r-------- 1 fred users 20480 août 8 2001 VTS_05_0.BUP
-r-------- 1 fred users 20480 août 8 2001 VTS_05_0.IFO
-r-------- 1 fred users 2889728 août 8 2001 VTS_05_1.VOB


looks like it's gonna take a week !

and how come the VTS_01_0.VOB 's size is only 4059136 in the target directory and 10350592 on the dvd ?

my computer is an aspire 9320 with 1200GB HDD and AMD turion 64 1.6 Ghz

it's the first time I try to rip a dvd on linux

I typed this :

vobcopy -m

I am doing something wrong ?

Can't I just do an iso copy (mkisofs) ?

actually the dvd was dirty
I clean it and launched the vobcopy again
it is now 20 times faster but still... it's going to take the whole night

how come it is so slow ?

Most likely you have a copy-protected DVD that you are trying to copy. And part of that copy protection is implemented as "intentional bad sectors". Therefore vobcopy is banging its head against the wall trying and trying to read, re-read, and recover those bad sectors that it will never be able to. Vobcopy probably sped up after you cleaned the disc because you additionally had some "non-intentional bad sectors" due to dirt on your DVD. Now that those are gone after a good cleaning, you are still left with the intentional bad sectors.

1 members found this post helpful.

Is the DVD in the same region as the DVD drive ? If not, then it will keep spinning up and down and limit your speed to 1x.

There are also other measures they can take to slow you down like haertig says. I have one DVD that is virtually impossible to rip. But this is rare, because I was able to rip lots of other DVD without issues and very quickly.

1 members found this post helpful.

thank you for your replies H_TeXMeX_H and Haertig !

It makes sense

but... I've try another dvd and it was slow. I'm trying again this morning. Now it goes fast !

Looks like my computer needed to rest... (???)

next time I'll simply reboot and cross my fingers (does one say that in english ?)

actually vobcopy says :

Vobcopy 1.2.0 - GPL Copyright (c) 2001 - 2009 robos@muon.de
[Hint] All lines starting with "libdvdread:" are not from vobcopy but from the libdvdread-library

[Info] Path to dvd: /dev/sr0
libdvdread: Encrypted DVD support unavailable.

does this message has anything to do with the intentionally bad sectors ? And does this affect the ripping ?

No it is still slow

it went fast on small vob files but I have the same issues with the big 1 Gb vob files

it says 0.3% after 3 minutes which means it should take ages

You lack support for encrypted DVDs.
You could try again after installing libdvdcss (also available on slackbuilds.org).

1 members found this post helpful.

"vobcopy" is an older program. It comes from many years ago, before we had such things as INTENTIONAL bad sectors. So it does not do well when it runs into a bunch of bad sectors. It assumes you really want to try to get the data from those problem sectors, and it tries and tries again. But with INTENTIONAL bad sectors, what you want to do is simply skip the bad ones, not try to recover them.

Research and install a newer program, "dvdbackup".

"dvdbackup -Mv -i /dev/dvd" replaces "vobcopy -m" You may need to change "/dev/dvd" to match what your system lists as your active DVD drive, say, if you have more than one DVD drive installed.

1 members found this post helpful.

yess !

looks like it's working fine with that

instead of
libdvdread: Encrypted DVD support unavailable

I get:
libdvdread: Using libdvdcss version 1.2.11 for DVD access

thank you very much

I am using dvdbackup right now. I suppose vobcopy wasn't the issue. I needed to install libdvdcss 1.2.11 in order to read encrypted dvds (see my previous post)
But still, dvdbackup is better than vobcopy, so thanks for the advice.

This forum really helps

See you soon