On Wed, 26 Nov 2003, Richard Ellis wrote:
> I've seen that same 10.08Mbps maximum upper limit for DVD's as well.
I haven't seen any that come even close to the upper limit.
Perhaps one of the "Superbits" titles would be worth a look,
they leave out all the extras (additional audio tracks, special
features, etc) to make room for video bits.
> My understanding was that to properly comply with the DVD
> consortium's rules, a player had be able to sustain that level of
> read speed from the DVD platter no matter what.
And of course all manufacturers adhere completely to the standards
when they're trying to churn out $49 DVD players :-)
Apple's documentatin for DVD Studio Pro has repeated cautions about
setting the rate too high.
In practice even with a rate limit of 8500 guess what? The DVDs
usually end up around 6000 to 6400 - much depends on the material,
the options used (turning off B frames, eliminating single coefficients,
and so on all work to lower the bit rate to well under the maximum).
Cheers,
Steven Schultz
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