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Old 31st December 2008, 13:15   #214  |  Link
turbojet
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Join Date: May 2008
Posts: 1,840
Quote:
Originally Posted by jdobbs View Post
When encoding without quick extras a two pass encode is done on all files with a set reduction ratio. When using quick extras a single pass encode is done that uses a standard CRF that should get the size reasonably close (but not exact) as an average. Then when all the smaller files are completed, the remaining space is used to calculate bitrate needed for largest M2TS (main feature).
hmm I wonder the issue has something to do with audio or subs overhead. I had first 2 hit target size, well good enough 4369 and 4375 MB, but since I've gotten 4225 MB and 4464 MB with the defualt DVD5 size of 4369 MB. Lots of variance and I can't see anything uncommon between them. The 4225 and 4375 results had ac3 audio, while 4369 and 4464 had DTS audio. All had 3 subtitles except 4375 MB only had 2.
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