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All Forums > Tech Talk > Tech Talk Forum Page 42 > When the picture on a DVD looks "digitized"...
AuthorPost
greatskilz
Member

161 Posts
6/05
Posted - Apr 24 2006 : 8:59PM
Apologies if this is not a tech issue; I think it relates more to the authoring on DVDs. Some of my purchases from cheaper companies, as well as a few major ones, display what I can only describe as digital picture breakdowns in any instance of repeated fast motion (and there's a lot of that in porn.) My question would be: is this flaw on my end (the DVD player) or the production end? I seem to be noticing it a lot more lately.

Apologies again if this was covered elsewhere; feel free to direct me to the relevant thread. Otherwise, any help would be appreciated. Thanks!

Flash All-Star Supporter
Golden Age Classic

11018 Posts
5/01
Posted - Apr 24 2006 : 11:15PM
I think what you are describing is when the bit rate is set too low for the amount of action going on. If that is the case there is nothing you can do about it as that is how the disc is authored.
I've also had cases where something from the creation of the disc is still on it and a good cleaning has solved the problem. But usually it is the first case.
budtugley
Senior Member

One man's trash can be the next man's treasure.
1187 Posts
1/04
Posted - Apr 25 2006 : 5:02PM
It's pixielation most likely. It can be the result of many factors. A dirty disc is the most likely culprit. Sometimes the compression/decompression of the images when the disc was manufactured is the culprit. If that's the case, there's nothing that you can do.
Some companies will use cheaper media or cut corners during the video transfer and they're more likely to pixielate.
Tinaka
Member

953 Posts
8/03
Posted - Apr 25 2006 : 5:40PM
Vivid movies are like this so they can fit more of their shit on.
greatskilz
Member

161 Posts
6/05
Posted - May 1 2006 : 1:44AM
Apparently they're called "blocking artifacts." I am pretty frustrated because more & more of my DVDs are doing it, including the recent Red Lights which always seemed fool proof before. Non-porn DVDs must have a higher budget because I don't see this on any of my regular movies. There is absolutely no possibility it could be my setup?
 
justalurker
Member

241 Posts
8/03
Posted - May 2 2006 : 10:37PM
My old panasonic had a defect in the tracking lens, I would see artifacting after using it for more than 2 hrs. The one thing you could try is running them in another setup and seeing if that also shows the artifacting.
greatskilz
Member

161 Posts
6/05
Posted - May 5 2006 : 10:02PM
Thanks. I checked it out in that manner, and it's definitely the encoding...not my (humble, non home-theater) set-up.

Well, this may sound naive but I'm stunned. Of the many adult DVDs I purchased last month, maybe 1 in 2 had a noticeable pixellation or block artifact problem at some point in their run. It's hard to believe this is widely accepted and "par for the course." I suppose there can be several explanations: as widely reported, video does not look good on DVD; the higher encoding standards may be viewed as prohibitively expensive (ironic given that porn is "a recession-proof industry," why not put out high quality product?); lastly, given the below-ground nature of this business in the first place, there's not a lot of publicization or FAQs* about adult media and people tend to take what they're given. But this is the first time I ever questioned the format, at least for this application. VHS may have been patently inferior, but in those days I didn't have to worry about interlacing or block artifacts.

*(although I'd love a link if there were any!)

Flash All-Star Supporter
Golden Age Classic

11018 Posts
5/01
Posted - May 5 2006 : 10:49PM
The problem is laziness, instead of using a variable bit rate those with the problem tend to use a straight bit rate which is set too low for some areas. The sad thing is in many of the examples that I have seen, fixing the problem would not have required moving up to a DVD-9 which might raise costs.
BigBobxxx
Senior Member

2681 Posts
5/04
Posted - May 6 2006 : 8:50AM
Yes, but...

How many VHS tapes:
* Didn't track properly.
* Were out-of frame (bottom of one frame appearing at the top of another frame).
* Were actually boot-legged copies (that you paid full retail price for what you thought were "factory-sealed originals"). I'm guessing 25-50% were bootlegs!
* Were used, worn-out videos from the peep-booths and rental pool when they were sold, often re-shrinked as "new," to you.

I don't miss the VHS media at all.

The one really bad drawback with DVDs, and ALL digital formats, is that when certain problems develop you have complete failure of the entire disc. Fortunately, this is a rare occurrence.

When I have had unwatchable DVDs due to the problems you discussed, I have burned new DVDs. The re-coding process has always cured these problems for me.
I will not elaborate on this because we then go down the slippery slope of aiding and abetting people bent on making illegal copies... which, we properly do not discuss on ADT

Edited to add:
FYI, I deeply resent having to re-code my own DVDs that I purchase to make them watchable. The industry should produce working-quality DVDs in the first place.
For me, it is just the easiest solution.
And, yes, I realize that most people do not have the technical expertise or equipment to do this themselves... and, again, they shouldn't have to

Edited by - BigBobxxx on 5/6/2006 8:56:45 AM

greatskilz
Member

161 Posts
6/05
Posted - May 6 2006 : 11:24AM
Indeed, I completely agree with you, and would never advocate a return to inferior standards.

Thanks for sharing your experienced; perhaps I will look into it elsewhere.

All Forums > Tech Talk > Tech Talk Forum Page 42When the picture on a DVD looks "digitized"...

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