[openbeos] Re: ISO-9660 BFS filesystem extension
- From: François Revol <revol@xxxxxxx>
- To: openbeos@xxxxxxxxxxxxx
- Date: Thu, 10 Jan 2002 10:12:30 +0100 (MET)
That doesn't mean it doesn't parse the UDF data to jump to the first .vob file
data...
Anyway the filesystem is not in the /dev/... driver, it is _in_ the data you
copy from it. (or developpers are getting more and more weird :))
That's why you can dd a bfs partition to foo.img and do things like
mkdir /foo
mount /boot/home/foo.img /foo
En réponse à Jonathan Tarbox <jtarbox@xxxxxxxxxxxxx>:
> Well.. whether or not UDF is used on the disc, the DVD decoding is done
> as a
> bit stream.. I have seen the source code, read a little of the
> official
> standards book (wow, two pages worth of it and I got a headache) Just
> going
> by what I saw.. Terminator running with overlay support within BeOS
>
> -jtarbox
>
> > > that's a personal opinion).. but most DVD decoders don't even use
> it. a
> > DVD
> > > usually is read as a raw bit stream from the device. it's quite
> > interesting
> > > reading, don't member the full details, but I'm not even sure what
> udf
> on
> > a
> > > dvd is used for.. prolly optional stuff.. /shrug
> >
> > not true. it's required of all DVD players to read basic UDF.
> > it's part of the standard.
> >
> > you can check out section 6.9 of the UDF2.00 specs (it's probably
> > a different number in other versions)
> >
> > "DVD-ROM discs shall be mastered with the UDF file system"
> > ...
> > "DVD-Video players expect media in UDF 1.02 format."
> > ...
> > "A DVD player shall only support UDF and not ISO 9660."
> >
> >
> > more importantly on this discussion...
> >
> > "Note: The disc may also include the ISO 9660 file system. If the
> disc
> > contains both UDF and ISO 9660 file systems it shall be known as a
> UDF
> > Bridge disc. This UDF Bridge disc will allow playing DVD-ROM media
> in
> > computers which may only support ISO 9660. As UDF computer
> implementations
> > are provided, the need for ISO 9660 will disappear, and future discs
> should
> > contain only UDF."
> >
> >
> >
> > -soco
> >
> >
> >
>
>
>
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