Posted by Biz on 11/15/62 11:30

"Temistocle" <p.ten@email.it> wrote in message
news:fdcd29a126a67bcba715ac5e4c34e5ed.54074@mygate.mailgate.org...
> Hi,
>
> I want to know if it is possible to fit 2 or + movies (say a couple of
> MPEG-1 and a DivX) on a single 4.7 GB support, with each of these movies
> becoming a chapter selectable (i.e. a button) from main menu.
> Compatability with home DVD players is needed.
> How can I get it and with which softwares?
> Are 4.7 GB constrained to a specific duration (as 650 MB in audio CD =
> 74 min) or, with a quality and/or size reduction (for instance 352*288),
> is it possible to fit more than 120 minutes?
> In a computer-ripped backup DVD that I borrowed from a friend of mine I
> could notice that a 120 min movie fitted in as little as 2 GB!! I
> dropped a VOB file from this DVD in ffmpegX (I'm a Mac user), and I saw
> it was 352*576 (shouldn't it be 768*576 ?). I did not try this disc on
> my home DVD player, but with Apple DVD Player (program that comes with
> Mac OS X) I could watch it fine.
> Other two questions:
> - if my original movie is a 320*240 MPEG-1, how can ffmpegX (or an
> equivalent sw) get a DVD (therefore a MPEG-2) with more-than-double
> width and height (i.e. 576*768)? where does software take missing
> pixels? or does it make conversion leaving the movie at same dimensions,
> since is home DVD player that does the magnifying job?
> - are chapter points (or scene markers) inside VOB? how can I make scene
> insertion/deletion?
>

Standard DVDs playable on standard dvd players, need mpeg-1 or mpeg-2 video.
It can be one of many different resolutions, but it must be mpeg-1 or
mpeg-2, so anything that is not must be converted for format and resolution
if necessary...

Audio cds, many times referred to as redbook CD audio is CBR(constant
bitrate) @ 1411 kb/s, so they are limited in how much music you can fit on a
CD. DVDs can and usually do use VBR, variable bitrate video, so you can fit
a large range of durations based on teh avg bitrate...most audio in DVD is
CBR, DD/DTS, LPCM, are both CBR. If you want to read about th valid audio
and video options, try the FAQ, specifically sections...

http://www.dvddemystified.com/dvdfaq.html#3.4
http://www.dvddemystified.com/dvdfaq.html#3.6

How you acheive these specs is up to you, there are hundreds of tools out
there to use...

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