Re: [dvd::rip] I'm tryin' to understand Video (re)size in dvd::rip

Sorry to spam the list; I just wanted to point out that I was mistaken
WRT transcode's abilities. It can take *input* in mkv, but I don't
think it can output mkv. Not that anyone on this list uses matroska,
but I wanted to clear that up anyway.

On 4/6/07, Mike <shmoogawa@xxxxxxxxx> wrote:

First of all, I'm assuming that you're backing up to files meant to be
played back on a computer, not a standalone player (hence the use of
xvid and ogm). If that's the case, then *DO NOT* output at 30 fps.
Leave the fps alone, since at best you merely add 25% to the bitrate
(keeping constant quality). Also, the container format you choose
won't change the quality of the video: it's just the container.

As for your questions, I'm pretty sure that that's the output
resolution, but your video player of choice (e.g., mplayer, vlc, xine,
etc.) ought to be able to tell you the resolution of the file. If you
want to keep the resolution at 720x480 (which is what you want to do
if file size is no factor), then don't zoom or clip. You'll need a
player that can handle changing the aspect ratio (many, but not all,
do), and in that case, you might consider using a matroska container
(instead of ogm, which isn't very good anyway), since it supports
setting the aspect ratio in its metadata. Speaking of which, I noticed
that there have been a few people asking for matroska support over the
last 4 years, all but the first of which have gone unanswered. I guess
that means that, although transcode supports mkv containers, there
won't ever be support for it in dvd::rip?

Last thing is: if you're going to use a constant quantizer, don't do
2-pass encoding. In fact, since it didn't use anywhere near the space
you allowed it to, 2-pass is probably useless whether you use a
constant quantizer or not.