Any Use in Using Target Size Higher than 25GB

[Av8r]

I backup all my BD's to my hard drives, so the size doesn't matter much. I usually just use the defaults, but for some really special movies, I like to tweak and play with this great piece of software to see if I can increase the quality at all.

I thought Inception might be fun to play with, so I have it a highest quality, but then I realized if the size is still under 25 GB then will it really be any better. I have no idea what to change the target size to. Is there likely any benefit to increasing it up over 25 GB? And if so, what amount? Just guess and type in 3000MB?

[jdobbs]

I backup all my BD's to my hard drives, so the size doesn't matter much. I usually just use the defaults, but for some really special movies, I like to tweak and play with this great piece of software to see if I can increase the quality at all.

I thought Inception might be fun to play with, so I have it a highest quality, but then I realized if the size is still under 25 GB then will it really be any better. I have no idea what to change the target size to. Is there likely any benefit to increasing it up over 25 GB? And if so, what amount? Just guess and type in 3000MB?

What size disc are you using? If you set it above 25GB your output won't fit on a single-layer BD-25 disc...

Target size is telling BD-RB how big to make the output. The quality levels tell it what bells-and-whistles to use to get the most from your output size.

[Av8r]

What size disc are you using? If you set it above 25GB your output won't fit on a single-layer BD-25 disc...

Target size is telling BD-RB how big to make the output. The quality levels tell it what bells-and-whistles to use to get the most from your output size.

I'm putting these movies on my 2 TB hard drives. That's why I said the size doesn't matter.

[Ch3vr0n]

Trust me it will mather rather soon. 4 25GB movies on 1 drive and you're out a 20th of the maximum space. and i know i have 3 1TB drives and 1 2TB drive and they fill up rather quickly

[jdobbs]

If size doesn't matter, you might as well just keep the original intact... the whole purpose of the program is to put HD on inexpensive media like BD-25, BD-9, and BD-5. But, of course, you can set the output to any size you want. Whatever floats your boat. When you start to get close to the orignal size, though, BD-RB automatically keeps video sections intact when it can.

[Av8r]

Trust me it will mather rather soon. 4 25GB movies on 1 drive and you're out a 20th of the maximum space. and i know i have 3 1TB drives and 1 2TB drive and they fill up rather quickly

I'm only talking about certain movies. For most movies, I do use Auto and am perfectly happy with the results. My question is whether on certain select movies, where you want to make an exception and have the best possible quality, is whether it makes a noticeable difference using "Highest Quality". My specific question, was what size to use, but I think JDobbs is right. At that point, I might just as easily use the original iso.

I should know soon though. I am trying it on "The Tudors" and Inception. My computer is sure running choppy though;)

[RobertM]

From your first post it seems like, for some movies, you want to use BDRB to actually IMPROVE the quality, resulting in picture quality that is better than the input BD source. Generally speaking, this is not possible. For those movies you should just stick with the original video.

[Av8r]

From your first post it seems like, for some movies, you want to use BDRB to actually IMPROVE the quality, resulting in picture quality that is better than the input BD source. Generally speaking, this is not possible. For those movies you should just stick with the original video.

Sorry I gave that impression, but no, I realize that this software can't make the movie better than the original. I was looking for a way to still compress as much as possible without losing ANY quality, and to also get rid of useless subtitles, audio channels, and government warnings etc.

I've got this pretty well figured out now. For the exceptions where I want to keep every bit of quality, I simply don't use "auto quality" and use "highest", and only run it overnite, as the computer is a pita to use during that encode;)

[jdobbs]

Sorry I gave that impression, but no, I realize that this software can't make the movie better than the original. I was looking for a way to still compress as much as possible without losing ANY quality, and to also get rid of useless subtitles, audio channels, and government warnings etc.

I've got this pretty well figured out now. For the exceptions where I want to keep every bit of quality, I simply don't use "auto quality" and use "highest", and only run it overnite, as the computer is a pita to use during that encode;) Actually there is a way to do exactly what you are asking. You simply encode with a fixed CRF value. Look up FIXED_CRF in the HIDDENOPT.TXT file.

A fixed CRF of about 18-20 will give output that is pretty much indistiguishable from the original. But, of course, the output sizing is unpredictable. It's conceivable that it might even be larger than the original (though unlikely).

[Av8r]

Actually there is a way to do exactly what you are asking. You simply encode with a fixed CRF value. Look up FIXED_CRF in the HIDDENOPT.TXT file.

A fixed CRF of about 18-20 will give output that is pretty much indistiguishable from the original. But, of course, the output sizing is unpredictable. It's conceivable that it might even be larger than the original (though unlikely).

Thanks. I'll give it a try.

[Av8r]

Thanks. I'll give it a try.

I'm trying it now. I changed the CRF to 18. Under "Output Options do I check the "custom target size" box? it has 40,000 in brackets.

[Capsbackup]

I'm trying it now. I changed the CRF to 18. Under "Output Options do I check the "custom target size" box? it has 40,000 in brackets.

Actually there is a way to do exactly what you are asking. You simply encode with a fixed CRF value. Look up FIXED_CRF in the HIDDENOPT.TXT file.

A fixed CRF of about 18-20 will give output that is pretty much indistiguishable from the original. But, of course, the output sizing is unpredictable. It's conceivable that it might even be larger than the original (though unlikely).

FIXED_CRF=n n = 10..50 - force CRF encoding to use this CRF value (output size control disappears)

:cool:

[Av8r]

:coolFIXED_CRF=n n = 10..50 - force CRF encoding to use this CRF value (output size control disappears) :

I just tried that, and the output size did not disappear. If it had, I wouldn't have asked the question. And where did you find that quote? It's not in this thread.

[Capsbackup]

I just tried that, and the output size did not disappear. If it had, I wouldn't have asked the question. And where did you find that quote? It's not in this thread.

Look up FIXED_CRF in the HIDDENOPT.TXT file.


Just a couple posts up. ;)

[Av8r]

Just a couple posts up. ;)

Not that quote. The 3rd one you posted yesterday. I don't see that anywhere.

[JJB]

That's quoted from the HIDDENOPTS.TXT file in the BD_Rebuilder folder.

[Av8r]

That's quoted from the HIDDENOPTS.TXT file in the BD_Rebuilder folder.

Thanks. I must have done something wrong, because the output size is still there. It doesn't matter anymore. I know how to achieve what I was looking for.