Hi all
We had know this issue,and the devs had checked this,we will fix it asap.
thanks all
Joe
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50gb->25gb Compression Results
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I didn't mean it is a common occurrence, i mean i hope it doesn't become a common occurrence. As of right now it is a rarity. This is the first time for me and hopefully the last. This could be some sort of bug put in the bluray structure to affect the compressing of the movie. I'm sure the boys are working hard to figure this one out.
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Originally posted by bmiller View PostThe compression was 87% of the original, movie only with Dts audio. 25.3 Gb down to the target of 22.3 Gb. After a couple of hours compressing, the final size was 13 Gb. Hopefully this is a one off with this movie, and not something we can expect as a common occurrence in the future. This is first i've encountered this problem.
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The compression was 87% of the original, movie only with Dts audio. 25.3 Gb down to the target of 22.3 Gb. After a couple of hours compressing, the final size was 13 Gb. Hopefully this is a one off with this movie, and not something we can expect as a common occurrence in the future. This is first i've encountered this problem.
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The x264 encoder uses quantizers (quality scales). Most often quantizers between 10-51 get used. Isn't it possible that the highest quality (q=10) gets used during the complete encode and that the data needed to reach this quality is less than the BD25 size?
I know that "The Social Network" is extremely compressible, because it's free of grain and very dark.
A solution might be to change the quantizer range from 10-51 to 1-51. This will only help to fill the disk completely, but it will not increase the visible quality.
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If I had the original movie I guess I could compare but the thread is about 50 to 25 gb which would be the most you could compress! My 13.9 gb move as I said I cant say what the compression ratio was but I have a high end LED LCD 240hz and the picture was great at the 13.9Gb!
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I'm sure most of us are curious as to why this movie compresses so much and most others reach the target of 22 Gb give or take a few bytes. It's wasted space on a 25 Gb disc that should be used for movie data. At least the over compressed version plays ok. Unless the developers find out a reason why, i'll have to make a super compressed version. I hope this isn't a sign of things to come.
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I never paid attention to the time it took but it was not anything different then all the other movies I have done!! But the disc says 13.9 compressed and it plays fine in both my players. I don't know if this thread is about why the wrong numbers in compression or Fab copied the move and it does not play?? I cant speak for people that compress 50 to 25gb. But my copy compressed is 13.9 and plays just fine!
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Originally posted by bmiller View PostThe main movie and HD audio only is 25.2 Gb. After many tries with various versions of Dvdfab, same result. End result is 13.1-15.2 Gb. I'm sure this is being looked into as there are a few of us with the same problem.
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Originally posted by wizzkid View PostOn my blu ray copy of The Social Network, I'm doing a BD25 compression. It states that 87% will take the original 25.338gb down to 22.461gb (enough to find on a BD25 disc). After 14 hours of compression, the resulting directory is only 14gb instead of 22.461gb, the main movie file is something like 13.8gb, when it should be 22gb. Why is the compression taking the files down to 8-9gb less then they should be?
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The main movie and HD audio only is 25.2 Gb. After many tries with various versions of Dvdfab, same result. End result is 13.1-15.2 Gb. I'm sure this is being looked into as there are a few of us with the same problem.
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This time i made an .iso of the main movie and the HD audio on one hard drive. The resulting .iso was 25.3 Gb. I then ran the .iso through dvdfab using BD25 as the output and after 2 hours came up with a file 13.8 Gb in size.
I'm just trying different scenarios to try and get this to work properly, but it appears it's not possible with this particular movie.
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I tried it on an older version 7, and the same result. The target was 22 3 Gb, and the result was 15.2 Gb.
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This is a full disc .iso that has been ripped to the hard drive. The protection has already been removed.
The same thing with the latest beta version and Lightning encoding unchecked.
This time the final size is 15.1 Gb. Now i'm going to try an older version 7 and see what happens.
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