is the canadian Passion of the Christ really full bit rate DTS?
09-01-04, 12:15 PM
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is the canadian Passion of the Christ really a full bit rate DTS?
theres a rumor floating around on htf that the dvd thats in canada that was released by Warner/Equinox has a full bit rate DTS track. why can't fox do the same for the US?
Last edited by Rypro 525; 09-01-04 at 12:58 PM.
09-01-04, 04:38 PM
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Originally posted by gbub
I didn't think a full bit rate track could fit on one DVD as seen with Dances with Wolves.
I didn't think a full bit rate track could fit on one DVD as seen with Dances with Wolves.
Another good example of this is Apollo 13. The Dolby Digital version has a few extras, but the video is also at a higher bit rate.
09-01-04, 08:48 PM
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According to a thread over at HTF, the Canadian release is indeed a full bit dts track along with some of the other regions over seas. The US R1 is the standard half rate 754.5Kbps. Full dts bit rate is at 1509Kbps
09-01-04, 09:08 PM
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What's the point on having a 1509 kbps bitrate Audio track, if the picture quality is correspondingly degraded because of that high bitrate audio? 1509 kbps is a *huge* cost to pay, which is probably > 25% of the total bitrate of the movie itself!! Is the difference in 768 vs 1509 *really* worth it? I'm just trying to understand, that's all. For all that's worth, how is 768 really better than 448 kbps 5.1?
Thoughts on maximizing audio at the expense of picture quality?
Thoughts on maximizing audio at the expense of picture quality?
09-01-04, 09:14 PM
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Max DVD bit-rate is on the order of 9500kbps. So you are looking at 9500kbps - 448kbps(max AC3 track) - 1509(max DTS track) = 7543kbps available for video. That is still a substantial portion of the bits for video, a lot of DVDs are down in the 5000kbps range and still look pretty good.
09-01-04, 09:20 PM
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What's the total storage capacity of a dual sided dvd? Passion is using up 7,484MB's. The DTS track is only using 679MB's (full bit rate would be like 1300MB's or something). For the curious, the DD track is taking up 399MB's of space.
I thought storage potential was something like 8.5 gigs. If that's the case they could have gone full bit rate without sacrificing any video quality (I think, someone correct me if I'm wrong here).
I thought storage potential was something like 8.5 gigs. If that's the case they could have gone full bit rate without sacrificing any video quality (I think, someone correct me if I'm wrong here).
09-01-04, 09:27 PM
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Originally posted by zyzzle
What's the point on having a 1509 kbps bitrate Audio track, if the picture quality is correspondingly degraded because of that high bitrate audio? 1509 kbps is a *huge* cost to pay, which is probably > 25% of the total bitrate of the movie itself!! Is the difference in 768 vs 1509 *really* worth it? I'm just trying to understand, that's all. For all that's worth, how is 768 really better than 448 kbps 5.1?
Thoughts on maximizing audio at the expense of picture quality?
What's the point on having a 1509 kbps bitrate Audio track, if the picture quality is correspondingly degraded because of that high bitrate audio? 1509 kbps is a *huge* cost to pay, which is probably > 25% of the total bitrate of the movie itself!! Is the difference in 768 vs 1509 *really* worth it? I'm just trying to understand, that's all. For all that's worth, how is 768 really better than 448 kbps 5.1?
Thoughts on maximizing audio at the expense of picture quality?
Canada:
Video - 6,738 MB's
USA:
Video - 6,010 MB's
09-01-04, 10:01 PM
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Originally posted by Masamune
I check this out at work tomorrow for you guys. I'll see if it says DTS or not.
I check this out at work tomorrow for you guys. I'll see if it says DTS or not.
09-01-04, 11:34 PM
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Very interesting info posted on the space consumed by video for Canadian vs US version... Looks like the Canadian Release is the one to *definitely* get: a 12% increase in average video bitrate (6734 MB vs 6011 MB) and full-rate 1536 kbps DTS also?
Yes, the capacity of a DVD-9 is 8.5 GB. Infuriating is the fact that this full capacity is *very often* not utilized... Case in point is THE PASSION US release, as documented above! Most Superbits are not so "Super" when one discovers that the movie only takes 5 to 6 GB out of the 8.5 GB available. I know bitrate isn't everything, but, all else being equal, find me a case where more bits does not equate to better picture quality.
Can we assume the same master for THE PASSION was used for the US and Canadian Releases? Therefore, by default, we know that the Candian version will have better picture quality than the US version.
Yes, the capacity of a DVD-9 is 8.5 GB. Infuriating is the fact that this full capacity is *very often* not utilized... Case in point is THE PASSION US release, as documented above! Most Superbits are not so "Super" when one discovers that the movie only takes 5 to 6 GB out of the 8.5 GB available. I know bitrate isn't everything, but, all else being equal, find me a case where more bits does not equate to better picture quality.
Can we assume the same master for THE PASSION was used for the US and Canadian Releases? Therefore, by default, we know that the Candian version will have better picture quality than the US version.
09-02-04, 12:47 AM
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I guess I'll be picking up the Canadian version. I saw it at Walmart for about $25.00 CDN. Anyone know if there is a cheaper price at other Canadian B&M stores (Futureshop, Best Buy, Costco?). Or hell, maybe I'll just wait for a PV copy at Blockbuster or Jumbo.
09-02-04, 10:08 AM
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Originally posted by Jah-Wren Ryel
Max DVD bit-rate is on the order of 9500kbps. So you are looking at 9500kbps - 448kbps(max AC3 track) - 1509(max DTS track) = 7543kbps available for video. That is still a substantial portion of the bits for video, a lot of DVDs are down in the 5000kbps range and still look pretty good.
Max DVD bit-rate is on the order of 9500kbps. So you are looking at 9500kbps - 448kbps(max AC3 track) - 1509(max DTS track) = 7543kbps available for video. That is still a substantial portion of the bits for video, a lot of DVDs are down in the 5000kbps range and still look pretty good.
Video = 9800
DD = 448
DTS = 754
That totals 10554 bps for DTS and 10248 for DD since only one audio track is being used at a time. Plus there has to be more room for subtitles if they are turned on (although that would be minor).
Last edited by Green Jello; 09-02-04 at 10:30 AM.
09-02-04, 10:45 AM
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...a 12% increase in average video bitrate (6734 MB vs 6011 MB) and full-rate 1536 kbps DTS also?
Also, the potential problem with a 1509 kb/s DTS track is not the total file size, but the amount of headroom consumed by audio that is taken away from video. DVD uses variable bit rate MPEG compression which means the bit rate varies based on what any particular frame needs at any particular time. 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.
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.
09-02-04, 11:34 AM
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Originally posted by cultshock
I guess I'll be picking up the Canadian version. I saw it at Walmart for about $25.00 CDN. Anyone know if there is a cheaper price at other Canadian B&M stores (Futureshop, Best Buy, Costco?). Or hell, maybe I'll just wait for a PV copy at Blockbuster or Jumbo.
I guess I'll be picking up the Canadian version. I saw it at Walmart for about $25.00 CDN. Anyone know if there is a cheaper price at other Canadian B&M stores (Futureshop, Best Buy, Costco?). Or hell, maybe I'll just wait for a PV copy at Blockbuster or Jumbo.