Amazing feedback, guys ! It´s a pleasure to help a friend as well as to do a "brain exercise".
@Jorel Sorry for my late feedback (I was in my work ! :oops: ). In final step of calculations I make a mistake, sorry ! :oops: I forgot of sqrt (which means "square root" ... By the way, I agree that some steps omissions in the calculation to become the result unclear. So, fixing the error, we have Code:
a% = [ 1 - sqrt[(Size of Target DVD - Size of Audio DVD)/(Size of Source DVD - Size of Audio DVD)] ] x 100 a% is the percentage which will be applied in each pass from two ones. You pay attention that result is general one and depends of size of your source DVD , size of your target DVD e size of DVD audio (source). So, I get the data that you provide which were the following: Code:
Size of source DVD = 7976 MB 7976 - 475 = 7501 (size diference between DVD source and DVD audio) 4464 - 475 = 3988 (size diference between DVD target and DVD audio) So, we have to perform 3989/7501; after to extract to square root of that result and then the one is deduct from 1; finally we multiply for 100 e then we will get the percentage ! In the present case, it will be: Code:
27,08 % |
Nice set of calculations Danpos.
Actually, if you have a look at my proposal, my suggestion was to use what DVDShrink gives for a one pass compression [T] to calculate what is needed for two passes with the same compression rate [T'=10.SQR(T)], thus forgetting any calculation involving respective sizes of audio and video. The result is general as well, but is based on the estimation of DVDShrink itself. If you need two passes with different compression rates, T1 and T2, the general formula is : T1.T2 =100.T . Applied to the Camel example: Quote:
If you make it two passes with same compression, you need 10.SQR(53) = 72,8 % each time. It means that for each pass, you "eliminate" 100-72,8 = 27,2%. What puzzles me is the slight difference with the result you provide [27,08]. Apparently, DVDShrink calculates think a bit differently... |
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Cheers, |
Once again:
What's the difference in quality between doing one step vs. two steps in DVD Shrink? |
hy audioslave.
like i posted for you you will only understand doing... Quote:
like i wrote here too... Quote:
:wink: |
:oops:
Sorry jorel, I totally missed your earlier answer... |
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