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Old 18th February 2020, 23:34   #29285  |  Link
jdobbs
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Join Date: Oct 2001
Posts: 20,973
Quote:
Originally Posted by toiletglasses View Post
How is BD-RB so wildly off-size? I have a blu-ray that's only 4.73GB, so I ask it to encode to BD-5 (4.37GB). Result: 3.73GB. This is with highest quality, 2-pass. The entire point of 2-pass is to get exact size. I've repeated this with FULL blu-rays, to BD25. The result is ALWAYS smaller than DVDFAB, thus, lesser quality. It's off by GIGABYTES. Custom size 23.3GB? BD-RB gives me 19-21GB.
BD-RB log
From your log:

- Bitrate: 15,000 Kbs

You are hitting the maximum bitrate for an AVCHD disc. BD-RB can't make it any larger without risking exceeding the speed that a BD-5 can handle.

So... BD-RB isn't "wildly off-size" -- it is doing exactly what it supposed to do to prevent the disc from skipping and/or failing during playback.
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Last edited by jdobbs; 20th February 2020 at 19:16.
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