Quote:
Originally Posted by toiletglasses
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 |
shamelessly taken from another site
The Max official allowable bitrates for AVCHD are:
1. (BD media) ~24Mbps v+a+sub/pic
2. (DVD media) ~18Mbps v+a+sub/pic (this is supposed to also equal BD-9 spec)
and the new Max AVCHD/3D and AVCHD/60p rates are:
~28Mbps v+a+sub/pic (only BD media is supported)
As you can see, BD/AVCHD titles on DVD media are more limited by the spin/transfer capability of the DVD playback chain than by the spec's limits, so it often depends on the brand/quality of the playback equipment. Realistically speaking, you should set the target bitrate to fall in the 1/4 to 1/3 (possibly/occasionally 1/2) compared to BD rates.