DVD Shrink's "Deep Analysis"

[busterw]

Does DVD Shrink's "Deep Analysis" process really improve quality as it claims?

Thanks!

[VicodiN]

Yes. Your welcome

[busterw]

Ok, that was easy.

Thanks!

[IpicmaNose]

From what i have tested, deep analysis adds a huge chunk of time and it appears to add time to the transcoding process also. THat is my experience from doing the same epsidoe disk with and without deep analysis.

[xpress]

what about if the movie is small enough and there is no need for compression - does it still pay to do the deep analysis?

[phonomas]

From what I understand there's no need. Deep Analysis is only necessary when there's compression involved.

[offline]

No. If it fits then deep analysis is not required or useful.

[theboywonder]

Agreed. You DO NOT need deep analysis if the movie doesn't require compression! Think about it! :P

[JasonK]

Right, Deep Analysis is only used for compression.

But I didnt think it was even possible to do a deep analysis unless compression is required.

I almost always do deep analysis on any movie that needs compression of 97% or more (lower number %) after stripping away menus, extras, foreign & 2-channel audio tracks, and credits. It takes about 1/2 hr, and I can still use the internet for other things.

I havne't done direct comparison of deep analysis vs not using it.

[wayne421]

Hi!

To offer my two cents on DVDshrink's 'Deep Analysis' feature, I'd echo what's already been said. If you're doing any kind of actual compression, it's worth the wait. This is especially true in extreme compression.

I've recently been backing up some DS9 DVDs - each DVD is 4 episodes, which is about 3 hours of video.

I ran the first couple through Deep Analysis, and even at a whopping 55% compression (almost half!), they still looked pretty good on my HDTV with progressive scan DVD player. There were a few bits of artifacting here and there, but VERY minor, much more minor than I was expecting.

I finally figured since I was erasing them anyway after watching them, why waste the extra 45 minutes doing Deep Analysis? So I ran the next batch straight through without Deep Analysis.

The difference? HUGE. Artifacting on a regular basis, some of it quite bad, too. Not a problem in the end since the data was 'disposable', but a good learning experience for me. This was the first time I did a direct comparison and boy did it leave an impression.

Anyway, hope this helps out.

-W

[Cobra281]

so you just run a deep analysis then backup the disc? i did deep analysis and it didnt copy any files or anything...

[theboywonder]

With the new DVDShrink, if the DVD is bigger than a DVD-5 (or DVDr) then it will require compression, and by default it will select "deep analysis mode" when you click "backup".

You can turn this off it you like - once you click backup a further options box pops up and the setting is in there. As we have read I would advise keeping it - I do! And I agree - compressing DVDs down to 60% of the original have yielded brilliant copies with hardly any noticable difference

Cobra, after the deep analysis has completed (30mins +) it should then move onto encoding and write the files to your hard disk. Do not confuse this with the analysis that it runs when you first open the DVD - that is simply to analyse the DVD layout and structure.

[tsioc]

would I get better quality using TMPGenc to reencode? Or would I even notice a difference between that and the Deep Analysis of Dvd Shrink?