12-22-2007, 04:58 PM
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#41 | | Senior Member
Join Date: Jun 2006
Posts: 367
| I think you're doing something wrong. 1 hr of HD should be ~500mb...
Last edited by bunbury; 12-23-2007 at 12:56 AM.
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12-22-2007, 09:07 PM
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#42 | | Moderator
Join Date: Feb 2005 Location: Austin, TX
Posts: 10,151
| If HD video is ~500MB/hr, why did we have to wait for HD-DVD and Blu-Ray for HD movies? Why wouldn't they fit on 4.7GB minimum regular DVDs?
DV video, which is mostly uncompressed, is 17GB/hr. How good of a compression ratio do you think is reasonable? It's rare you see one over 10:1.
I'm going to ignore entirely your feelings of entitlement to other people's work. | |
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12-23-2007, 12:55 AM
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#43 | | Senior Member
Join Date: Jun 2006
Posts: 367
| Quote:
Originally Posted by KD5MDK  If HD video is ~500MB/hr, why did we have to wait for HD-DVD and Blu-Ray for HD movies? Why wouldn't they fit on 4.7GB minimum regular DVDs?
DV video, which is mostly uncompressed, is 17GB/hr. How good of a compression ratio do you think is reasonable? It's rare you see one over 10:1. | 1hr = 10gb in MPEG-2/you don't know what you're doing. It's possible to hit 10gb with TrueHD and MPEG-2, but that's massive overkill of anything. | |
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12-23-2007, 11:02 AM
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#44 | | Moderator
Join Date: Feb 2005 Location: Austin, TX
Posts: 10,151
| 10:1 would be 1.7GB/hr, not 10. | |
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12-23-2007, 03:54 PM
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#45 | | Senior Member
Join Date: Oct 2002 Location: West Coast
Posts: 2,402
| Well, actually, if we're talking HDV with minimal compression, you're looking at about 13 gigs per hour of tape. Do some edits, add some graphics, and it gets much bigger, in a hurry.
Full blown HD is more than a gig a minute, some codecs can balloon up to 4 gigs a minute. That adds up pretty quick.
Sure, you can scrunch anything down with monster compression, but then you lose the benefits of the HD or HDV source video. I know guys who've burned HD material onto a standard DVD...but you get about 4 minutes worth.
When the double-sided burners form HD-DVD or Blu-Ray get the bugs worked out, then you can start getting close to an hour of top quality video per disc, with minimal compression.
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12-23-2007, 04:33 PM
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#46 | | Senior Member
Join Date: Jun 2006
Posts: 367
| Quote:
Originally Posted by Capt. Slo-mo Well, actually, if we're talking HDV with minimal compression, you're looking at about 13 gigs per hour of tape. Do some edits, add some graphics, and it gets much bigger, in a hurry.
Full blown HD is more than a gig a minute, some codecs can balloon up to 4 gigs a minute. That adds up pretty quick.
Sure, you can scrunch anything down with monster compression, but then you lose the benefits of the HD or HDV source video. I know guys who've burned HD material onto a standard DVD...but you get about 4 minutes worth.
When the double-sided burners form HD-DVD or Blu-Ray get the bugs worked out, then you can start getting close to an hour of top quality video per disc, with minimal compression. | Sure, 20 mbps H.264 or VC-1 will get you your 1gig/minute, but it can still be cut down with MPEG-4. I think they would be good to go if they just took the finals (and possibly semi-finals) in HD and left the rest to regular. | |
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