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19th October 2005, 22:16 | #1 | Link |
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Always have high reduction level
Curious as to why I always have a high "reduction level"?
Most recent: - VTS_01: 2,787,717 sectors. -- Scanning and writing .D2V & .AVS files -- Processed 219,869 frames. -- Building .AVS and .ECL files - Reduction Level for DVD-5: 87.8% - Overall Bitrate : 4,462/3,569Kbs - Space for Video : 3,995,618KB - HIGH/LOW/TYPICAL Bitrates: 4,765/1,890/3,569 Kbs Even on shorter movies with lower bitrates, the reduction is still 70%+. I'm ripping "main movie" with decrypter, editing the start/stop with shrink (no compression), then preping with rb. What am i doin' wrong? tia |
19th October 2005, 22:26 | #2 | Link |
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why do you think something is wrong? My understanding is that Reduction level figures mean that the movie needs to be reduced to 87.8% of its true size to fit on a DVD-5 ?
the higher this figure the better I would have said. |
19th October 2005, 23:07 | #4 | Link |
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"Higher is better." I guess I completely misread another thread, and yes, I am doin' movie-only.
I guess I thought something was wrong since on my test encodes I've been getting rather blurry results. CCE Basic, VBR_bias:25, VBR_Passes:2, Quality Prec:16, default encoder matrix. Screens available if curious. Any ideas or recommended settings? |
20th October 2005, 00:02 | #5 | Link |
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Two things to look at:
1. Make sure you haven't added any filters to the filter editor and forgotten about them. 2. Check the original for comparison -- see if it is "blurred" as well. At the compression levels you are using you shouldn't normally be able to distinguish between the original and the backup. There's always exceptions, but that's usually only for originals that have extremely high numbers of frames to be encoded. Yours doesn't. |
20th October 2005, 00:09 | #6 | Link |
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One other thing... try doing the movie with no Shrink step. I've been told that running a job through Shrink, even though you choose no-compression, can result in blurring. I can't confirm that, though, as I don't use Shrink.
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21st October 2005, 14:57 | #8 | Link | |
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21st October 2005, 18:04 | #9 | Link |
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I don't know that for a fact... and my initial feeling was that it couldn't be so. But I have seen enough reports to that effect that I'm just not sure... and they all reported blurring. I guess someone could run it through some time and compare the demuxed sources. But as I've said before -- I can't chase problems that may be related to preprocessing with 3rd party sources... there'd be no end to it.
Last edited by jdobbs; 21st October 2005 at 18:08. |
21st October 2005, 18:38 | #10 | Link |
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That doesn't make sense. DVDShrink does do some goofy stuff to the IFO structure which PGCEdit will detect. It doesn't modify I-frames at all, just B and P. Those are only modified if the stream is to be shrunk. AfterDawn posts are screwed.
If anything, loading PGCEdit and allowing its sanity check should be helpful. If there are broken or corrupt nav structures, PGCEdit will fix them. I've seen this a lot on TV episode discs.
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