TargetSectors

[xcy73]

I am having difficulties calculating the correct TargetSectors value in DVD Rebuilder v0.97 Freeware for a total output of 4.37 GB (around 4,695,000,000 bytes). Can anyone help?

[jptheripper]

just do a search

[Rockas]

http://forum.doom9.org/showthread.php?s=&postid=482090#post482090

[DocDragon]

i found out the following:

if i activate "Enable Menu Encoding,"

TargetSectors=2250000

would give me 4.35 to 4.36 GB in 99% of my DVD conversions and enough space to include high quality covers in a separate directory.

if i DEactivate "Enable Menu Encoding,"

TargetSectors=2255000

would give me the same above-mentioned results.

BTW, i'm using DVD-RB Pro (although it shouldn't make a difference) in combo with CCE Basic. "TargetSectors" might need adjustment if you are using a different encoder...

my 2 cents.

DD

[jdobbs]

If you leave it at the default you will use over 98.9% of the available disc space. It will save you many hours of reencoding caused by encoder oversizing and will also prevent problems of pixelation and stuttering caused by problem sectors found at the edge of many (most?) discs. The additional 1% gain will not improve your video quality by any level that is measurable.

So the really relevent question is "Why would you change it?"

[Fishman0919]

default for DVD-RB is 2236400

DocDragon uses TargetSectors=2250000

Max for a DVD is about 2297888

At the default for a 2 hr move the avg bitrate would be about 4615k with 1 audio track of DD at 448k

At TargetSectors=2250000 a 2 hr movie avg bitrate would be about 4647k with 1 audio track of DD at 448k

I really don't think anyone could see a diff between 4615k and 4647k over a 2 hr movie

[jdobbs]

To repeat what I've said previously... it's like peeing in the ocean and then measuring it to see how much it has risen. It certainly has... but is the difference really significant?

You also have to multiply the value you've specified by 1.015 to cover pack and navpack overhead. So, 2236400 actually outputs 2269946. A Verbatim DVD+R (for example) will hold 2295104. You must also consider the fact that encoders never hit their target exactly. If it oversizes by a little over 1% (which is reasonable) and you've changed the value -- you might have to throw away your ISO file and start over.

Ok... the horse is dead. To each his own.

[roux]

... stuttering caused by problem sectors found at the edge of many (most?) discs...

I have experienced this problem on some discs and i don't think it's the media (verbatim mcc004) cause they are quality discs. I know now i leave the setting to default in the future.

[DocDragon]

To repeat what I've said previously... it's like peeing in the ocean and then measuring it to see how much it has risen. It certainly has... but is the difference really significant?

yeah, absolutely right. it's more like peace of mind to know that the DVD storage has been exploited to its fullest capacity and nothing left unused :D .

DD

[laserfan]

...it's more like peace of mind to know that the DVD storage has been exploited to its fullest...Well, maybe, but like I said in another thread on this subject, the first time you spend hours re-encoding, and then the thing doesn't fit, or in my case the burning software Tried & Failed to burn it, well that is very distressing, not to mention the 2 bucks if it was a DL disc.

So I now enjoy peace of mind, knowing that the defaults will always result in a good burn without having to re-do the damn thing.

:cool:

[DocDragon]

[...] well that is very distressing, not to mention the 2 bucks if it was a DL disc.

So I now enjoy peace of mind, knowing that the defaults will always result in a good burn without having to re-do the damn thing.

:cool:

why would you want to take a DVD and compress it to a "DL" (double layer/DVD9) disc? you could simply do a 1:1 copy -- or am i missing something??? i mean the whole purpose of DVD-RB is to shrink DVD9 to DVD5...

DD

[Trahald]

you can use something like dvdremake to join 2 dvd-9s together into a 'dvd-18' then dvd-rb it down to a dvd-9 and burn to dual layer.

[jdobbs]

Exactly. It is especially useful when you've used internal realtime encoders on capturing devices or software that can only give decent quality at very high bitrates. You can then reduce it to make it fit on either DL or DVD-5. It also comes in handy when you have one of the high end versions of a long movie that uses two discs (like "Dances With Wolves") -- it's a lot more convenient to have it on one DL.

[laserfan]

why would you want to take a DVD and compress it to a "DL" (double layer/DVD9) disc? you could simply do a 1:1 copy -- or am i missing something???Yeah, like Trahald and jdobbs said. I had re-worked Titanic SE from being split across two discs, to one dual layer. I also did this with Pearl Harbor.

Another time I took a long, letterboxed DVD and up-converted it to Anamorphic. Didn't want to compress it any further so I made a DL disc of it.