is the canadian Passion of the Christ really full bit rate DTS?
09-02-04, 11:48 AM
#27
DVD Talk Platinum Edition
Join Date: Sep 2000
Posts: 3,380
Likes: 0
Received 0 Likes
on
0 Posts
Not exactly correct. 12% increase in video file size, not average bit rate.
Since average bit rate is equal to file size divided by playing time, I don't see how one can grow by 12% if the other does not. Unless you want to use a different definition for average such as median or mode.
It is quite common for difficult-to-compress material to require the maximum available data rate to avoid artifacts. If 20% or more of the available bandwidth is given over to audio, then it is possible the video will have to be compromised at some point.
That is definitely a potential problem, although I thought variable-rate MPEG2 could "pre-load" bits for those peak requirements, making use of available bandwidth before the peaks. But, maybe that was MPEG4 since I can't find reference to it after a couple of minutes of work in google.
Lastly, the maximum data rate for DVD of about 9.8 mb/s is for everything, and audio and subtitle tracks are part of that, even if not selected.
Yes, all the tracks are interleaved together as one bit-stream (aka an MPEG2 program stream), otherwise the player would have to seek back and forth from the sound track to the video track to the subtitle track and since seeking involves physically moving the laser head assembly it is orders of magnitude too slow to maintain the required data throughput. At least with consumer grade, rather than heavy-duty == expensive, equipment.
Since average bit rate is equal to file size divided by playing time, I don't see how one can grow by 12% if the other does not. Unless you want to use a different definition for average such as median or mode.
It is quite common for difficult-to-compress material to require the maximum available data rate to avoid artifacts. If 20% or more of the available bandwidth is given over to audio, then it is possible the video will have to be compromised at some point.
That is definitely a potential problem, although I thought variable-rate MPEG2 could "pre-load" bits for those peak requirements, making use of available bandwidth before the peaks. But, maybe that was MPEG4 since I can't find reference to it after a couple of minutes of work in google.
Lastly, the maximum data rate for DVD of about 9.8 mb/s is for everything, and audio and subtitle tracks are part of that, even if not selected.
Yes, all the tracks are interleaved together as one bit-stream (aka an MPEG2 program stream), otherwise the player would have to seek back and forth from the sound track to the video track to the subtitle track and since seeking involves physically moving the laser head assembly it is orders of magnitude too slow to maintain the required data throughput. At least with consumer grade, rather than heavy-duty == expensive, equipment.
09-02-04, 12:21 PM
#28
DVD Talk Legend
Join Date: Oct 2002
Location: True North Strong & Free
Posts: 23,217
Received 2,203 Likes
on
1,506 Posts
Originally posted by actyper
$23.99 at Shoppers Drug Mart.
$23.99 at Shoppers Drug Mart.
09-03-04, 11:15 AM
#31
DVD Talk Special Edition
Join Date: Jan 2002
Location: Toronto Canada!
Posts: 1,756
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by cultshock
Not bad. I've never bought a DVD at Shoppers before.
Not bad. I've never bought a DVD at Shoppers before.
09-03-04, 07:56 PM
#36
DVD Talk Hall of Fame
Are there any Canadian dealers that offer free shipping to the US?
Looking to pick up the Canadian version for under US $20 shipped. Anywhere?
Looking to pick up the Canadian version for under US $20 shipped. Anywhere?
09-03-04, 09:15 PM
#37
DVD Talk Special Edition
Join Date: Apr 2001
Posts: 1,221
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by zyzzle
Are there any Canadian dealers that offer free shipping to the US?
Looking to pick up the Canadian version for under US $20 shipped. Anywhere?
Are there any Canadian dealers that offer free shipping to the US?
Looking to pick up the Canadian version for under US $20 shipped. Anywhere?
http://www.dvdsoon.com/show-title-de...xml?uid=114846
09-03-04, 09:16 PM
#38
Senior Member
Woohoo, thank goodness for being canadian. Thats been one or two dvds now, where I've lucked out with a good version.
Good luck [american]y'all[/american]!
:P yes, dumb joke.
Good luck [american]y'all[/american]!
:P yes, dumb joke.
