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-- How can you tell if a dvdr is REALLY re-encoded or 1-click shrinked? (http://www.vcdhq.com/forum/showthread.php?threadid=61658)

How can you tell if a dvdr is REALLY re-encoded or 1-click shrinked?

I have been following discussions on the dvdr scene for quite some time. And I have a deatailed question which concerns quality.

I made an analysis of the dvdr "ETERNAL SUNSHINE OF THE SPOTELESS MIND"-2004 relasesed by BooZers.
The nfo says "downsampled". I ran an analysis using a bitrate viewer and found a bitrate average of 7 Mb/s (approx.) This can not be correct when the film is quite long and some etxtras are included.

The bitrate viewer can be found at: www.visualdomain.net

So is this an indication of what the original bitrate used to be on the retail dvd source?

I ran another dvdr "THE MANCHURIAN CANDIDATE"-2004 by Centropy. This release claims CCE and a re-encode down to approx. 4 M/s This one seems to match the nfo when I am using the bitrate viewer.

I am quite picky when it comes down to judging dvdr quality. So how can you tell (using some software) if a film has been re-encoded or just 1-click (dvdshrinked) to fit a dvd 5?
Some dvdr:s look quite good picture wise, but seems to be fishy.

Another example is "WIMBLEDON"-2004 by BooZers. The bitrate viewer claims an average of 8.5 mb/s. The nfo says downsampled. Can this be true on a 97 min film?

Any pro tips besides a trained pair of eyes?

Any help truly appareciated.

__________________
"You get what you pay for..."

Use DVDInfoPro and check the implementation id.

If your eye can't tell you what does it matter?
Are you watching to enjoy the movie or analyse the encoding?
The filesize has to be reduced (shrunk) whatever.

quote:

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Originally posted by illogical
If your eye can't tell you what does it matter?
Are you watching to enjoy the movie or analyse the encoding?
The filesize has to be reduced (shrunk) whatever.

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Interested in facts about dvdr:s

The reason for this thread was to determine facts about a release. I am not interested in oppinion. One release can look good to someone and less satisfying to others. I can of course agree that as long as the image looks good the rip and downsampling technique becomes less annoying.

I have tested the program DVDINFOPRO and it does not really give me any hard facts as far as I can tell. I have tested my own rips which are (looseless) DVDShrink rips and the implementation id is: AHEAD NERO?

What I am looking for is a program which gives me a TRUE bitrate I can trust when I verify a downsampled / re-encoded dvd.

Any pro. rippers out there which can point me in the right direction?

Thanks in advance.

Thomas

__________________
"You get what you pay for..."

The only reason I can think of that the implementation id would be showing AHEAD NERO is because you used Nero to burn the disc and it decided to set it to this. DVD Decrypter does not do this. All my DVDs that I used DVD Shrink to transcode read DVD Shrink under implementation id, whereas the ones I used DVD-RB for read mkisofs.

You want the true average bitrate? Use DVDDecrypter to demux the video stream. Divide the size of the file in kilo-bits by the runtime in seconds.

doesn't dvdshrink use a CBR method from memory? anything about 5.5gb and i avoid. scene releases should never be done with it, full stop.

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