vobcopy

http://berklix.com/~jhs/txt/dvd/vobcopy/

By Julian Stacey

Up One Directory

• http://www.freebsd.org/cgi/cvsweb.cgi/ports/sysutils/vobcopy/
• http://linux-programming-newbie.org/
• /usr/ports/sysutils/vobcopy/

• Support Libraries
  • libdvdread
    • cd /usr/local/lib ; ls -l libdvdread*
      
    • /usr/ports/multimedia/libdvdread
      
    • http://www.mplayerhq.hu/MPlayer/releases/dvdnav
• libdvdcss
  • cd /usr/local/lib ; ls -l libdvdcss*
    
  • /usr/ports/multimedia/libdvdcss
  • From pkg-descr: library designed for accessing DVDs like a block device without having to bother about the decryption.
  • Unlike most similar projects, libdvdcss doesn't require the region of your drive to be set.
  • http://www.videolan.org/libdvdcss/
  • Essential: Without it, after several hours, a FreeBSD-7.2 with "vobcopy -m /dvd" only produced 24M, with masses of device errors.

• Best use vobcopy rather than dd, as vobcopy recovers better than dd with bad media,
• Best mount the DVD first & use mounted name not device.
• Best use -m , because it preserves menu info (such as start at which scenes) ( Some DVDs have audio track 1 = Spanish, & Audio track 3 = English (visible with vlc?), Although acidrip & mencoder offer an option of language= they don't seem to offer an explicit numeric track number selector - another reason to preserve look up table that may be in menus. )
• Best use the mounted directory name, (but vobcopy still also wants access to device as well, so also need chmod 444 /dev/[a]cd[0-9] ).
• Some DVDs have no AUDIO_TS, just VIDEO_TS
• vobcopy -m /mnt (Preceeded by mdconfig -a -t vnode -f thing.iso; mount -t udf /mnt /dev/md0;) produces exactly same files as from real /dev/cd media.
• Warning: Vobcopy by default generates long named .vob files, the order of which gets erroneously inverted when read by mkisofs.
• Warning: regarding upper & lower case file names:
  • Vobcopy produces names in upper case,
  • mount -t cd9660 /dev/md0 /mnt shows lower case video_ts
  • mount -t udf /dev/md0 /mnt shows upper case VIDEO_TS If comparing with eg cmpd then these may be useful toupper & tolower