DVD Shrink compression?

[only_emo_kid]

I've searched but I can't find the answer.. When backing up a movie with it... whut shoudl the compression be around for best quality on the movie part? not the menus or whutever.. just the movie whut % .... Thx

[Sifaga]

100 %

[canadateck]

You will find people will say,what ever looks good to "You". I for one never like to go under 60%.

[only_emo_kid]

100 %

no joke...

anyways, alright.. was curious, because around 70% is pretty decent, but I wanna make sure I don't cause it to look worse, and was curious whut others thought.. Thanks

[johns0]

Depends on the type of movie,slow talkies can be compessed more while action films cant plus its always easy to just shrink away and see if you can handle the quality.

[ZippyP.]

whut shoudl the compression be around for best quality on the movie part?

100 %

Your question was answered in the first reply. No joke. Anything less than 100% is not "best". Or do you really mean, "How much compression before you start to notice it?"

[only_emo_kid]

whut shoudl the compression be around for best quality on the movie part?

100 %

Your question was answered in the first reply. No joke. Anything less than 100% is not "best". Or do you really mean, "How much compression before you start to notice it?"

come on, u know whut i mean :P

" compression means something is done to it, if its 100% means no compresion at all!! "

[Sifaga]

100% is what i aim for

a few steps i take to achieve this

Choose smaller audio track

remove non english audio track

remove unwanted extras using VobBlanker

remove credits from the main movie using VobBlanker


Ive run DVDShrink on a DVD twice , first time about 50% compression and second time 95% and the movie looked fine to me.

so it is whatever looks good to you

[only_emo_kid]

100% is what i aim for

a few steps i take to achieve this

Choose smaller audio track

remove non english audio track

remove unwanted extras using VobBlanker

remove credits from the main movie using VobBlanker


Ive run DVDShrink on a DVD twice , first time about 50% compression and second time 95% and the movie looked fine to me.

so it is whatever looks good to you

which audio tracks do i not need? are they all the same? because i'll see like 5 english ones.. like 5.1 and whut not?

[Sifaga]

I keep the 5.1 but i have been known to keep the DTS


it depends on space and the movie

[ZippyP.]

" compression means something is done to it, if its 100% means no compresion at all!! "

Okay, using your definition then, 99% is what the compression should be for the best quality.

My point is that quality is purely subjective. Each movie is different and there is no magic number where the quality level suddenly drops off. You need to test for yourself and find your tolerance level. Like Sifaga I aim for the least compression possible because that is always the best quality.

[only_emo_kid]

" compression means something is done to it, if its 100% means no compresion at all!! "

Okay, using your definition then, 99% is what the compression should be for the best quality.

My point is that quality is purely subjective. Each movie is different and there is no magic number where the quality level suddenly drops off. You need to test for yourself and find your tolerance level. Like Sifaga I aim for the least compression possible because that is always the best quality.

i know, I was just saying, I wasn't sure which way to do the compression cause it seems to go outta wack when i move the slider bar sometimes. and not sure if its giong the right direction.. Thx tho

[BobK]

Okay, using your definition then, 99% is what the compression should be for the best quality

No- the best would be 99.999999999...(to infinity)%.

[ZippyP.]

No- the best would be 99.999999999...(to infinity)%.

Yeah, but shrink only goes to to 99.9%.

[skebenin]

Depends on the source DVD.

In my experience, a fair number are good down to 70%. A rare few are good down to 60%, or even 55%.

I've only run across one or two that weren't good at 80% or better.

This is true for full disk backups as well as movie-only re-authors (though there are few DVDs now a days where you can do full disk at 80% or even 70%).

My rules of thumb:
- above 80%, Shrink and burn
- between 70% and 80%, Shrink, spot check quality in software player, split the disk if quality sub-par
- below 70%, I might Shrink and check quality, but I'm more likely to split the disk straight away

[wgb113]

With Shrink it's as much as you can tolerate. Someone watching their backup on a 25" TV, sitting 10' away, through a non-progressive scan DVD player using composite video connections might not notice the compression artifacts as much as someone watching on a 65" ISF calibrated HDTV sitting 10' away, through a top of the line progressive scan DVD player with component connections.

Some swear MP3's are perfectly fine as far as sound quality is concerned but their playback gear isn't likely as good as those who do not like the sound quality of MP3s.

It depends on how critical you are and how good the playback equipment you'll be viewing your backups on is.

Anytime compression is used you will lose quality.

If a backup requires more than 10% compression (Shrink's AUTO mode is at 89% or less) I'll put it onto two discs and use no compression.

Bill

[chicola]

Anytime compression is used you will lose quality.

Anytime LOSSY compression is used you will lose quality.

[wgb113]

Thank you for the correction!

[jimmalenko]

The best compression to aim for is the one that gives YOU the results YOU are happy with.

Simple really ...