On Sun, 8/4/13, Lee Menningen <[email protected]> wrote:
Just so you know, the IFO files contain DVD menu navigation
commands and
chapter information (I think), and if your conversion didn't
put any menus
on the DVD, that file would be almost empty. In any case, it
doesn't contain
any video or audio. The BUP is some sort of backup file that
you can ignore.
Lee
BUP files are backup copies of the IFO files of the same name. If a player
cannot read an IFO it attempts to read the same named BUP instead. If that
fails then the disc won't play at all or won't play correctly.
Computer DVD playing software can usually open and play VOB files directly but
without using the IFO files you won't get anywhere close to correct playback if
the disc author has done things like chopping up the video into pieces and
scattering them among the VOBs out of order or doing things like changing the
order of audio streams in different VOBs. "Taken" does that. I wanted to see if
my Blu-Ray player could play a DVD off a USB stick so I ripped it. The video is
all in order but somewhere it changes from English first to another language as
the first stream. It doesn't use the IFO files when reading from USB and also
had brief pauses switching from VOB to VOB. (Worse than a badly done layer
change.)
So darn, no ripping all my DVDs to a hard drive and plugging it into my LG
Blu-Ray player. :-P
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