Quantcast KDVD: Lord of the Rings Trilogy on one DVD - digitalFAQ.com Forums [Archives]
  #1  
04-17-2007, 10:18 AM
rainer rainer is offline
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don't judge me just yet!

This wasn't ment to an example of kdvd capabilities. I just wanted to have all movies on one disc for convenience.

Total runtime: about 8 hours 40 minutes
Audio: 160kbit Stereo (no chance keeping the original 5.1 track)
Vid bitrate: HCenc @ Q6,36
Resolution: 352x576
Script: MA+shit
Total size: 4,3gb (original over 20 gigs)

Results ain't dvd quality (surprise!) but looks good enough on my shitty 28" tv.
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  #2  
04-18-2007, 12:25 AM
supermule supermule is offline
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can you post any screenshots for our reference ???
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  #3  
04-18-2007, 02:25 AM
rainer rainer is offline
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04-18-2007, 11:18 AM
Dialhot Dialhot is offline
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You're right. That's not so bad at all !
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  #5  
04-19-2007, 05:00 AM
supermule supermule is offline
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looks decent enough, HCenc has really improved in the latest version (0.20) on the quality factor and for low BR.
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  #6  
04-19-2007, 07:54 AM
rainer rainer is offline
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Version 0.19 was used with those though....
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  #7  
04-20-2007, 04:22 AM
supermule supermule is offline
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Quote:
Originally Posted by rainer
Version 0.19 was used with those though....
Ops! I assumed
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  #8  
07-18-2007, 07:13 AM
Sagittaire Sagittaire is offline
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Well it's 1000 Kbps video encoding with 320*416 real resolution -> imply 3100 Kbps for 720*576 real resolution with the same bits/pixel.
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07-18-2007, 08:00 AM
Dialhot Dialhot is offline
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Less than this because 720*576 is the frame resolution, not the image one (the LOTR are in widescreen). Or else you have to compare it with 352x576 and not 320x416.

Nevertheless I don't understand your point : are you saying that it's normal that the reslut is not so bad as 3100 is yet a decent bitrate to do encodes ?
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  #10  
07-18-2007, 11:47 AM
Sagittaire Sagittaire is offline
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Quote:
Originally Posted by Dialhot
Less than this because 720*576 is the frame resolution, not the image one (the LOTR are in widescreen). Or else you have to compare it with 352x576 and not 320x416.
I speak about only real image here.


Quote:
Nevertheless I don't understand your point : are you saying that it's normal that the reslut is not so bad as 3100 is yet a decent bitrate to do encodes ?
Yes 3100 Kbps is a good bitrate for 720*576 resolution: with medium compressibility source, quality will be always good if you use a good MPEG2 encoder.

If you want comparison:
- Professional MPEG2 encoding use 4-6 Mbps for 720*576
720*576 for real image: 0.38 - 0.57 bpf
720*416 for real image: 0.53 - 0.80 bpf
- This example use 1 Mbps for 352*576
320*416 for real image: 0.30 bpf

It's 20 GB -> 4 GB converstion for size but ratio for bpf is not 1:5 but only 1:2. In fact for bpf this encoding is simply like backup convertion at 50% and use certainely the same average quantizer ...
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