[vlc] Re: RPC2 drives and MacOS X

[Robert Nicholson]

FYI. I just tried this as well and I get exactly the same output

Note: my drive doesn't currently have any region set and I'd like to 
keep it that way
at least for now.

Robert-Nicholsons-Computer:vlc.app/Contents/MacOS] robert% ./vlc 
--altivec --dvd dvd:/dev/rdisk1
VideoLAN Client - version 0.4.5 Ourumov - (c) 1996-2002 VideoLAN

libdvdcss debug: disc is scrambled
libdvdcss debug: requesting AGID
libdvdcss debug: drive authenticated, using variant 5
libdvdcss debug: authentication established
libdvdcss debug: GetASF authenticated, ASF=1
libdvdcss debug: cracking disc key from key hash ... this will take 
some time
libdvdcss debug: cracking disc key
libdvdcss debug: initializing the big table
libdvdcss debug: cracked disc key is 83:d2:91:3b:41
libdvdcss debug: getting title key the classic way
libdvdcss debug: requesting AGID
libdvdcss debug: drive authenticated, using variant 5
libdvdcss debug: authentication established
libdvdcss debug: ioctl ReadTitleKey failed (region mismatch?)
libdvdcss debug: GetASF not authenticated, ASF=0
libdvdcss debug: lost ASF reqesting title key
libdvdcss debug: resetting drive and cracking title key
libdvdcss debug: requesting AGID
libdvdcss debug: drive authenticated, using variant 5
libdvdcss debug: authentication established
libdvdcss debug: GetASF authenticated, ASF=1
libdvdcss debug: cracking disc key from key hash ... this will take 
some time
libdvdcss debug: cracking disc key
libdvdcss debug: initializing the big table
libdvdcss debug: cracked disc key is 83:d2:91:3b:41
libdvdcss debug: cracking title key
libdvdcss error: read error
libdvdcss debug: 0 of 0 attempts successful, 0 of 1 blocks scrambled
libdvdcss debug: file was unscrambled
libdvdcss debug: title key is 00:00:00:00:00
libdvdcss debug: unencrypted title
libdvdcss error: read error
libdvdcss error: read error

On Thursday, October 31, 2002, at 04:22  PM, Serge Cohen wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi;
>
> I'm trying to see "zone protected" DVD (css) on a RPC2 drive (limited 
> number of zone changes). From the site of VLC I had the impression 
> that VLC is able to do this, and indeed it looks to me it's pretty 
> close but I don't manage to see the DVDs.
>
>
> To get better understanding of what's wrong I've started VLC from the 
> command line, setting env. variable to have maximum error logging from 
> libdvdcss. Here is what it gives:
>
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> [vlc.app/Contents/MacOS] cohen% setenv DVDCSS_RAW_DEVICE /dev/rdisk1
> [vlc.app/Contents/MacOS] cohen% setenv DVDCSS_VERBOSE 2
> [vlc.app/Contents/MacOS] cohen% setenv DVDCSS_METHOD disc
> [vlc.app/Contents/MacOS] cohen% ./vlc --altivec --dvd dvd:/dev/rdisk1
> VideoLAN Client - version 0.4.5 Ourumov - (c) 1996-2002 VideoLAN
>
> libdvdcss debug: disc is scrambled
> libdvdcss debug: requesting AGID
> libdvdcss debug: drive authenticated, using variant 0
> libdvdcss debug: authentication established
> libdvdcss debug: GetASF authenticated, ASF=1
> libdvdcss debug: cracking disc key from key hash ... this will take 
> some time
> libdvdcss debug: cracking disc key
> libdvdcss debug: initializing the big table
> libdvdcss debug: cracked disc key is 02:ae:87:18:28
> libdvdcss debug: getting title key the classic way
> libdvdcss debug: requesting AGID
> libdvdcss debug: drive authenticated, using variant 0
> libdvdcss debug: authentication established
> libdvdcss debug: ioctl ReadTitleKey failed (region mismatch?)
> libdvdcss debug: GetASF not authenticated, ASF=0
> libdvdcss debug: lost ASF reqesting title key
> libdvdcss debug: resetting drive and cracking title key
> libdvdcss debug: requesting AGID
> libdvdcss debug: drive authenticated, using variant 0
> libdvdcss debug: authentication established
> libdvdcss debug: GetASF authenticated, ASF=1
> libdvdcss debug: cracking disc key from key hash ... this will take 
> some time
> libdvdcss debug: cracking disc key
> libdvdcss debug: initializing the big table
> libdvdcss debug: cracked disc key is 02:ae:87:18:28
> libdvdcss debug: cracking title key
> libdvdcss error: read error
> libdvdcss debug: 0 of 0 attempts successful, 0 of 1 blocks scrambled
> libdvdcss debug: file was unscrambled
> libdvdcss debug: title key is 00:00:00:00:00
> libdvdcss debug: unencrypted title
> libdvdcss error: read error
> libdvdcss error: read error
> libdvdcss error: read error
> libdvdcss error: read error
> libdvdcss error: read error
> .....
>
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>
> After that it continues to print lines like the last one (libdvdcss 
> error: read error)
>
> I have to mention that following the instruction of the FAQ, I made a 
> chmod a+w /dev/rdisk1 (giving write permission to the device).
>
> It seems to me that libdvdcss is able to crack the disk key but for 
> some reasons fail on the title key (which as far as I understood 
> should be easy to get if one already have the disc key, right?)
>
> Is this a known problem, or only a problem on MacOS or even on a 
> certain type of machines?
>
> For info, I have a PowerBook G4 (last generation, with DVI plug); the 
> drive is a Matshita DVD-ROM/CD-RW : CW-8121 with firmware AA17.
> I've tried both under system 10.1.5 and 10.2.1 without any difference.
>
>
> Thanks in advance for any answer/help/comments....
>
> Serge.
>
> PS: I have some skills in C programming, and I'd be pleased to help if 
> some one point me to where should I start...
>
>
> - ----------------------------------------------------
> Serge Cohen
>
> GPG Key ID: 1024D/69B1D346
> - ----------------------------------------------------
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