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View Full Version : How to change output size when using HC mode?


hbenthow
28th April 2014, 07:14
Whenever I use HC mode in DVD Rebuilder to shrink a DVD, the resulting DVD folder is always 4.31 GB. I would prefer 4.35 - 4.36 GB. Unfortunately, I have not found a way to change the output size. I tried one method that involved editing DVD Rebuilder's "Rebuilder.ini" file, but it didn't work.

Ch3vr0n
28th April 2014, 07:20
That 400MB "buffer" is actually to prevent burning on the disc up to the outer edge and to have a little room in case the size estimate runs a bit over the default size, where a blank is most prone to potential burn errors. 4.35GB is the absolute MAX a single layer disc can hold, so if the encode size would yield 4.36GB it wouldn't fit and you'd need a double layer blank just for that extra 100MB which wouldn't make much difference image quality wise.

hbenthow
28th April 2014, 20:17
That 400MB "buffer" is actually to prevent burning on the disc up to the outer edge and to have a little room in case the size estimate runs a bit over the default size, where a blank is most prone to potential burn errors. 4.35GB is the absolute MAX a single layer disc can hold, so if the encode size would yield 4.36GB it wouldn't fit and you'd need a double layer blank just for that extra 100MB which wouldn't make much difference image quality wise.I realize that there is a little space left over so as to keep from getting too close to the edge of the disc. However, I find 4.31 GB a bit excessive. That's too much loss in video quality for my taste.

My question is, is there a way to edit the output size when using HC mode, preferably to about 4.35 GB?

Ch3vr0n
28th April 2014, 21:11
you call a 400MB of room overkill? You do know that's less than 10% right? there is such a wasy and you specify 4.35gb. And the final output comes a bit bigger than the estimate out at 4.37GB? Then what, you going to complain about it being 200MB over your target?

Groucho2004
28th April 2014, 21:52
In order to set the target size, you want to modify the value for "TargetSectors" in "Rebuilder.ini".
The formula (pretty accurate in my experience) is:
TargetSectors = Target Size (in MB) * 505
The max. target size for DVD5 is 4482 MB. I always used 4440 MB (TargetSectors=2242200) to have a little bit of a buffer. That's a buffer of less than 1% of the total capacity.

hbenthow
29th April 2014, 01:27
In order to set the target size, you want to modify the value for "TargetSectors" in "Rebuilder.ini".
The formula (pretty accurate in my experience) is:
TargetSectors = Target Size (in MB) * 505
The max. target size for DVD5 is 4482 MB. I always used 4440 MB (TargetSectors=2242200) to have a little bit of a buffer. That's a buffer of less than 1% of the total capacity.Thank you. I'll try that and see if it works.

jdobbs
29th April 2014, 14:44
Just don't complain when you oversize or get read errors... the default numbers are there for a reason.

hbenthow
29th April 2014, 16:40
Just don't complain when you oversize or get read errors... the default numbers are there for a reason.I've been using DVD Shrink (which has a default output size of 4.35 GB) for years, and haven't had many problems.

In order to set the target size, you want to modify the value for "TargetSectors" in "Rebuilder.ini".
The formula (pretty accurate in my experience) is:
TargetSectors = Target Size (in MB) * 505
The max. target size for DVD5 is 4482 MB. I always used 4440 MB (TargetSectors=2242200) to have a little bit of a buffer. That's a buffer of less than 1% of the total capacity.I tried it, but it didn't work. The output was still 4.31 GB. Is there any particular place with in the Rebuilder.ini file to put the "Targetsectors" code? (By default, there is no "Targetsectors" code in my Rebuilder.ini file, so I have to guess where to put it).

Groucho2004
29th April 2014, 17:05
Is there any particular place with in the Rebuilder.ini file to put the "Targetsectors" code? (By default, there is no "Targetsectors" code in my Rebuilder.ini file, so I have to guess where to put it).
Should be under "Options".

Depending on the complexity of the DVD and the encoder used, the final size may be a bit off. 4.31 GB seems reasonable to me. That's still only 1.5% less than the maximum size. Why is this such a big issue?

RobertM
29th April 2014, 17:09
You don't have to edit your ini file manually for this. Just open the 'Settings>Setup' screen in BD-Rebuilder, and put your desired target size into the 'custom target size' box at the bottom. Now go to the 'Settings>Output options' screen and select that custom target size before starting your backup.


Is there any particular place with in the Rebuilder.ini file to put the "Targetsectors" code?

jdobbs
29th April 2014, 17:10
I've been using DVD Shrink (which has a default output size of 4.35 GB) for years, and haven't had many problems.DVD Shrink doesn't work anything like DVD Rebuilder. It doesn't even reencode, it just modifies the existing source to remove accuracies in order to make it smaller. So there really isn't a comparison there. But do whatever you want.I tried it, but it didn't work. The output was still 4.31 GB. Is there any particular place with in the Rebuilder.ini file to put the "Targetsectors" code? (By default, there is no "Targetsectors" code in my Rebuilder.ini file, so I have to guess where to put it).A quick search finds this link (http://forum.doom9.org/showthread.php?p=748168#post748168).

There's also the possibility of virtualization. Sometimes the O/S (especially Vista) relocates the INI file, and it may actually be in the ProgramData folder.

Groucho2004
29th April 2014, 17:15
I realize that there is a little space left over so as to keep from getting too close to the edge of the disc. However, I find 4.31 GB a bit excessive. That's too much loss in video quality for my taste.
I've only just seen this.
There is no way you'll be able to see a difference between 2 encodes where the bitrate differs by only 1.5%.

jdobbs
29th April 2014, 17:18
Should be under "Options".

Depending on the complexity of the DVD and the encoder used, the final size may be a bit off. 4.31 GB seems reasonable to me. That's still only 1.5% less than the maximum size. Why is this such a big issue?It shouldn't be.

Groucho2004
29th April 2014, 17:28
It shouldn't be.
Which part of my post are you referring to?

RobertM
29th April 2014, 17:31
The 'why is this such a big issue' part, I imagine.

Which part of my post are you referring to?

Groucho2004
29th April 2014, 17:34
The 'why is this such a big issue' part, I imagine.
Probably. It was a bit ambiguous.

jdobbs
29th April 2014, 17:43
The 'why is this such a big issue' part, I imagine.Exactly. 4.31 divided by 4.35 equals 0.99 of the maximum size. I don't even understand why we're even having this conversation. That extra 43MB isn't going to make any visual difference. It certainly doesn't make sense when I hear a comparison to DVD Shrink -- which will lose a LOT more quality simply because of its reduction method.

Oh well... I guess to each his/her own.Probably. It was a bit ambiguous.Sorry I wasn't clearer. I was agreeing with you.

hbenthow
29th April 2014, 18:08
You don't have to edit your ini file manually for this. Just open the 'Settings>Setup' screen in BD-Rebuilder, and put your desired target size into the 'custom target size' box at the bottom. Now go to the 'Settings>Output options' screen and select that custom target size before starting your backup.I can't find a custom target size box under "Setup". Perhaps it's only in the paid version?

I've only just seen this.
There is no way you'll be able to see a difference between 2 encodes where the bitrate differs by only 1.5%.Really? I was under the impression that every megabyte counts.

Exactly. 4.31 divided by 4.35 equals 0.99 of the maximum size. I don't even understand why we're even having this conversation. That extra 43MB isn't going to make any visual difference. It certainly doesn't make sense when I hear a comparison to DVD Shrink -- which will lose a LOT more quality simply because of its reduction method.I'm aware that DVD Shrink's output is of a lesser quality. However, I am used to using 4.35 GB of disc space, and want to create as high quality an encode as possible with DVD Rebuilder.

If there won't be any visible difference, it might not matter, but as I said, I thought every megabyte counts.

jdobbs
29th April 2014, 18:10
Sure everything counts -- but there is a point at which it really doesn't matter. Pissing in the ocean will make it rise. But will you really notice it?

I think I'll just walk away from this discussion... best of luck.

RobertM
29th April 2014, 18:49
Oops! I had my BD-Rebuilder hat on. Perhaps DVD-Rebuilder doesn't have a comparable setting...

I can't find a custom target size box under "Setup". Perhaps it's only in the paid version?