| 
      | Multiple MPEG
	   program stream chunks (VOB) ---> DivX | 
      | Here is a 3 step guide to rip a DVD and convert the multiple VOB
	   chunks, or only a single file, using transcode: 
	      We rip the DVD and put all VOB chunks, that make up the
		  actual movie into a subdirectory, denoted
		  here as
		  "my_movie/". For an encrypted DVD, we will need
		  libdvdcss under linux to do this, but this may
		  not be legal.
		  If you do not need DVD navigation or multiple angle
		  features,
		  the ripping is done by:
 
 tccat -i /dev/dvd -T 1,-1 | split -b 1024m - my_movie/movie-
 
		  I assume, "/dev/dvd" is a link to the DVD
		  device and the main title is 1.
		  The DVD does not have to be mounted, just
		  put it in the drive. After some time,
		  we chunks named: movie-aa, movie-ab, ...,
		  which are, but the last, exactly 1GB.
 The following is also valid, if we have used other
		  programs to copy the DVD title VOBs onto the
		  harddisk.
 It's a good idea, to let tcprobe take a look
		  at the files you want to encode. This is done
		  by typing:
 
 tcprobe -i my_movie/
 
		  assuming that "my_movie/" is a directory in your
		  present work directory.
		  The output may look like 
		  
		  [tcprobe] MPEG program stream[tcprobe] summary for my_movie/, (*) = not default, 0 = not detected
 import frame size: -g 720x480 [720x576] (*)
 aspect ratio: 16:9 (*)
 frame rate: -f 23.976 [25.000] frc=1 (*)
 audio track: -a 0 [0] -e 48000,16,2 [48000,16,2] -n 0x2000 [0x2000]
 detected (6) subtitle(s)
 
 
		  As you can see, the auto-probing feature has
		  detected a NTSC program stream with a single AC3
		  audio track. In the following, we only need to take
		  care of the aspect ratio 16:9, but that has already been
		  explained in the previous section. 
	      Now we can invoke transcode with the directory
		  mode, that internally concatenates all VOB
		  chunks. If
		  you need more bitrate or audio renormalization
		  information,
		  check the DVD section. The default is for MP3 audio
		  encoding:
		 AC3->MP3 
		    
		      | transcode | -i my_movie/ -V |  |  | -j 0,8 -B 3,1 |   | -t 10000,movie -y divx4 |  
	  To enable AC3 pass-through,
	  use "-A" and use "-N 0x2000"
	  to set the proper codec
	  in the AVI file and the player. The default audio
	  track
	  is 0, which is in most cases the original language. If you
	  want to have AC3 sound in your AVI-file, use: 
	  AC3->AC3 
	    
	      | transcode | -i my_movie/ -V -A |  |  | -j 0,8 -B 3,1 |   | -t 10000,movie -y divx4 -N 0x2000 |  
   If you own a DVD with uncompressed PCM audio, e.g., audio track 1,
   and
   want to keep the quality, i.e., pass-through the sound, use:
   PCM->PCM 
     
       | transcode | -i my_movie/ -V -a 1 |  |  | -j 0,8 -B 3,1 |   | -t 10000,movie -y divx4 -N 0x1 |  
   If your DVD has MPEG audio, it's usually MP2 format.  This is
automatically
detected and recompression to MP3 audio is  performed with the
default settings. However, if you need to resample your sound, here
is an example, using audio track 2:
   MP2->MP3 
     
       | transcode | -i my_movie/ -V -a 2 |  |  | -j 0,8 -B 3,1 -E 44100 |   | -t 10000,movie -y divx4 |  
   The "-t" option
   splits the output into separate files labeled movie000.avi,
   movie001.avi,..., with exactly
   10000 frames per file.
   On my CII 533@800 MHz, I get around 11 fps for the
   encoding, using the "-V" mode, which saves alot of
   bandwidth.
   This will take some hours, but since we work with linux,
   we don't need to care, just wait. 
    
   If you have to interrupt your session
   for some reason, you can always restart with the
   help of the "-c" option. You only need to count the
   valid files, i.e., with 10000 frames,
   already encoded to find out the first
   parameter for this option. Drop the last AVI file
   for it may be broken, but this is not the case if
   you use ^C. Also use some other
   basename for the "-t", like "-t 10000,movie1" to make
   sure, not to overwrite your old files. Ok, the
   braindead seeking implementation takes some time, but this is
   rarely used anyway.
 
 
 Take a look at the DVD section to learn how to avimerge
     the AVI-files. After merging,
     try to play the big files with
     mplayer
     and seek around. The audio/video synchronization
     should be acceptable. If everything seems fine, go ahead
     and burn your CDs. Note, that AC3 AVI files tend to
     be up to 25% larger compared to MP3 audio, which is the
     default for transcode.
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