Can not read region-1 disks in R2 drive

[Igor Bukanov]

While I can play my region-2 disks with region-2 DVD-ROM, I was never able to 
make it work with any region-1 disk. When I run vlc as root via:

DVDCSS_METHOD=disc DVDCSS_VERBOSE=2 ./vlc dvd:/dev/cdrom

I got:
VideoLAN Client - version 0.2.92_2002-02-08 Ourumov - (C)1996-2001 VideoLAN

libdvdcss debug: GetASF authenticated
libdvdcss debug: already authenticated
libdvdcss debug: requesting AGID 1
libdvdcss debug: drive authentic, using variant 5
libdvdcss debug: authentication established
libdvdcss debug: received session key
libdvdcss debug: GetASF authenticated
libdvdcss debug: already authenticated
libdvdcss debug: cracking disc key with key hash
libdvdcss debug: building 64MB table ... this will take some time
libdvdcss debug: initializing the big table
libdvdcss debug: decrypting title key with disc key
libdvdcss debug: GetASF authenticated
libdvdcss debug: already authenticated
libdvdcss debug: requesting AGID 1
libdvdcss debug: drive authentic, using variant 5
libdvdcss debug: authentication established
libdvdcss debug: received session key
libdvdcss debug: GetASF authenticated
libdvdcss debug: already authenticated
libdvdcss error: ioctl_ReadTitleKey failed
libdvdcss error: fatal error in vts css key
dvd error: fatal error in vts css key
dvd error: can't find first chapter

And similarly for the title method:
DVDCSS_METHOD=title DVDCSS_VERBOSE=2 ./vlc dvd:/dev/cdrom


VideoLAN Client - version 0.2.92_2002-02-08 Ourumov - (C)1996-2001 VideoLAN

libdvdcss debug: GetASF authenticated
libdvdcss debug: already authenticated
libdvdcss debug: requesting AGID 1
libdvdcss debug: drive authentic, using variant 5
libdvdcss debug: authentication established
libdvdcss debug: received session key
libdvdcss debug: GetASF authenticated
libdvdcss debug: already authenticated
libdvdcss debug: disc key won't be decrypted
libdvdcss debug: cracking title key ... this may take some time
libdvdcss debug: file was unscrambled


After that nothing happens.

So I have a question: can libdvdccs decrypt a region-1 disk when RPC-2 DVDROM 
set to region-2? Or it is just my drive (Torisan 646 in Dell Inspiron 7500) 
makes this impossible?


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