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View Full Version : Avoid DVDShrink to Backup Without Compression?


TomBrooklyn
10th October 2007, 14:08
Situation: Ripped DVD requires no compression. Ripped with RIt4Me and opened in DVD Shrink.

Is it preferable to use ImgBrn to burn backup than DVD Shrink, because DVD Shrink goes through an encoding process or something else which is not needed?

setarip_old
10th October 2007, 17:32
If the rip requires no compression, there's absolutely no reason to involve DVD Shrink...

TomBrooklyn
10th October 2007, 20:27
Right-O.

Is that because DVDShrink puts the files through some kind of processing whether they need to be compressed or not, but ImgBrn can burn them without that extra step of processing?

blutach
10th October 2007, 22:34
If you process a disk which needs no processing with DVD Shrink, it should do no damage to it.

But, there's no need to involve it, as setarip says.

Regards

tom942
10th October 2007, 22:40
But if you just do re-authoring and you are not compressing, the transcoder is disabled?.

I remember read in some forums that the transcoder always works, or is it an urban legend?.

blutach
10th October 2007, 23:02
No, it does not always work. If it is 100% and you can see space free, there is no transcoding. Evidence of this - next DVD you rip, set it to no compression and just strip the unwanted audio streams. See how fast it runs.

Regards

tom942
11th October 2007, 00:40
Thanks blutach :).

varekai
14th October 2007, 10:21
There are other reasons to use DVDShrink than just compressing...
Like in "Re-author mode" and "Set Start/End Frames" to remove unwanted
things like annoying "ads" in the beginning and end of a movie.
It's also useful to cut out and save smaller parts of a movie.
Good thing is you can keep any audio and any subs you like when cutting out.
Theres probably many other apps that can do this but to me DVDShrink does
what I need and it's done very easy.

varekai

Ollie W. Holmes
17th October 2007, 23:02
The quick and dirty usage of dvdshrink is to remove unwanted audio and subtitle streams from a main movie, then see if you can crank the compression percentage (using custom ratio) to 100%. If the bar at the top does not go into the red, you can safely do this on a 4.7 GB dvd blank. It will then shift the heavy compression to the extras. Personally, the transcoding in dvdshrink is fast and not very difficult to invoke. It is the pre-blanking in Vobblanker that may be user intensive, if you choose this form of pre-processing to really get the most space for your main title.

setarip_old
17th October 2007, 23:43
@Ollie W. Holmes

Hi!

If you re-read the initial post in this thread, you'll note that "Tom Brooklyn is asking about:Ripped DVD requires no compression.

varekai
18th October 2007, 07:36
@grumpy_old_pirates ;)

If the rip requires no compression, there's absolutely no reason to involve DVD Shrink...

...there are other reasons to involve DVD Shrink, besides compression...

setarip_old
18th October 2007, 07:52
@varekai

There are no postings in this thread by "grumpy_old_pirates"...

varekai
18th October 2007, 15:09
@setarip_old

Blimey! I could have sworn I spotted one... ;)

MackemX
20th October 2007, 12:16
No, it does not always work. If it is 100% and you can see space free, there is no transcoding. Evidence of this - next DVD you rip, set it to no compression and just strip the unwanted audio streams. See how fast it runs.

Regards

that's what I thought although it's been a few years since I tried it and may be wrong but didn't using 100% sometimes create different files whereas using 'no compression' left them intact? :) (or was it just the speed factor?)

setarip_old
20th October 2007, 19:05
@MackemX

Hi!didn't using 100% sometimes create different files whereas using 'no compression' left them intact?As I recall, you are correct...