[MPlayer-users] convert 8GB DVD to 4GB DVD

[Nick Rout]

k9copy is what you want. It requantises the vob files down to save space.

On 10/9/2006, "Noah Spurrier" <noah at noah.org> wrote:

>
>I have a bunch of 4GB DVD disks (single layer). I was thinking that
>it should it easy to convert some 8GB DVD images I have down to 4GB.
>I mount an image and then converted each VOB to a VOB with lower
>vbitrate and abitrate. I kept all the original .BUP and .IFO files.
>I thought this would be quick and dirty:
>    mencoder VTS_01_1.VOB -o /tmp/VTS_01.VOB -oac lavc -ovc lavc \
>    -lavcopts acodec=mp2:abitrate=128:vcodec=mpeg2video:vbitrate=3000
>I did that for each VOB to produced a set of VOB files of about
>the right size to fit on a 4GB DVD (I actually could have gone higher
>for the vbitrate). I then recreated the VIDEO_TS directory
>structure with the original BUP and IFO files and new, smaller, VOBs.
>Each VOB would play fine in mplayer, but the new image would not play
>in any DVD player I tried (settop player and VLC).
>So, either the BUP and IFO files are somehow dependent on the
>original VOB files or I'm completely wrong headed about all this.
>Is there a simple way to do this or do I have to remaster even the
>DVD menu?
>
>Yours,
>Noah
>
>
>
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