On 6 Dec 2003, Florin Andrei wrote:
> Using -g 1 might trigger hiccups on certain hardware DVD players; at
> least i was able to do that on a fairly new JVC XV-N55 (a very flexible
I was curious about that. That would imply that some DVD players
would be extremely allergic to I frame only encoded movies. I should
try it with my Philips player and see what happens.
Interesting that the JVC would have a problem - that's also the type
I had much difficulty getting a SVCD to play with (it happened to
be a 5 disc changer and I suspect they put the engineering into the
carousel rather than the DVD drive).
> I dropped "-R 0 -g 1" and eveything got back to normal.
> I added back "-R 0" and it continued to be fine.
That's because B frames are optional ;)
So far -R 0 has never produced a larger file for me and in some
cases the bitrate drop (especially on material captured from noisier
analog sources) is substantial (15% or more).
> Results seem to stay the same with different matrices, with adding -N
> and/or -E, etc. Of course, i didn't test quite _every_ combination.
That is quite time consuming and at the end of it you have a pile of
notes&figures that are hard to draw conclusions from :)
Cheers,
Steven Schultz
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