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Is 17 mbs bitrate too low for BD?
I have a 3-hour program that I want to fit on a single 25gb Blu-Ray. In order to do it, I will need to encode at 16.8 avg. data rate (MP2). Will that give me decent quality, or am I wasting my time? Dual layer is too expensive and Compressor won’t do H.264 for BD.
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23 Replies
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That’s pretty low for sure. Would go for the DL BluRay quite honestly.
Walter Biscardi, Jr.
Editor, Colorist, Director, Writer, Consultant, Author, Chef.
HD Post and Production
Biscardi Creative Media“Foul Water, Fiery Serpent” Winner, Best Documentary, LA Reel Film Festival.
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I agree with Walter.
For an H264 could be OK, but very low for MPEG-2.
On a HD MPEG-2, that would yield similar quality than a 3Mbps data-rate on an DVD.
rafael -
An Avg of 17 mb/s is fine. You can also set a peak setting as well in case your footage needs it. However, it also depends on the encoder you use and how well your source file is. Ive authored titles with a 14 mb/s avg and they look great…then again, I’ve never used Compressor for BD work. Do a test and see.
Lot of titles done with bitrates lower than that. Here’s a site which list some averages:
https://forum.blu-ray.com/blu-ray-movies-north-america/3338-blu-ray-movie-bitrates-here.html
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H-264 is usually used with MPeg4 not MPeg2. I’ve done several outputs using MPeg4 with H-264 and it looked great. Of course that depends on how good the footage was on import. I use FCP to output the footage so you don’t need to use compressor.
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[Joseph Bradley] “H-264 is usually used with MPeg4 not MPeg2. I’ve done several outputs using MPeg4 with H-264 and it looked great. Of course that depends on how good the footage was on import. I use FCP to output the footage so you don’t need to use compressor.”
The question is not about MP4/H264.
The question is about MPEG-2.
How will look a 1080 MPEG-2 at 17Mbps?
rafael -
So, if you’re not using Compressor, you must be using Quicktime to do the encoding, and neither Quicktime nor Compressor will make a blu-ray compatible H.264 file. So, what’s your secret, Joseph?
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Why won’t compressor make a BluRay compatible file? I’ve made a few that have been used in Adobe Encore with no problems at all
Steve Connor
Adrenalin TelevisionHave you tried “Search Posts”? Enlightenment may be there.
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Compressor only does Mp2 Blu-Ray files.
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It does do h264 for Blu-ray, certainly the latest version does at least. I know because I’ve done it numerous times
Steve Connor
Adrenalin TelevisionHave you tried “Search Posts”? Enlightenment may be there.
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Steve Connor
Adrenalin TelevisionHave you tried “Search Posts”? Enlightenment may be there.
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