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All Forums > Tech Talk > Tech Talk Forum Page 40 > Why a dvd will play ok to start but then mess up?
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bono-ONE All-Star Supporter
All-Star Member


SAMCRO
8571 Posts
8/00
Posted - Sep 9 2006 : 10:55AM
Hello and this is the right place to ask this question. I've had problems in the past and now with certain dvds not playing fully or not even loading at all. This is mostly with RLD/PXP dvds but I've had a handful from other companies like 3rd Degree and even Evil Angel which wouldn't work properly. Those that won't load don't piss me off nearly as much as the ones which depending on how many scenes there are fuck up in #'s 4,5 or 5,6 plus the extras might not fully play such as BTS. How is it that the first 3 or 4 scenes will play perfectly with no glitches but then the last two the picture gets jittery, freezes, unfreezes and finally it might just stop altogether. I'm not a technical person so this is most frustrating when this happens. I usually don't end up reviewing the dvd if this happens and I hate to not review something when it's sent to me. So any idea why this happens, how is a dvd authored at the start and how different is it at the end for those last couple scenes plus extras. I'd think the process would be the same all the way but maybe it's not.

Thanks for any input and I'll hopefully be getting a new dvd player in the next month or so but this one's been real good to me since I've had it.

pinc_noiz
Deactivated User

758 Posts
6/05
Posted - Sep 9 2006 : 11:13AM
DVD reading is from the inward side to the outward side of the disk. Disk diameter is getter bigger, diskspeed is decreasing in time. Player gets more difficulties reading because of poorly aliened laser, instable disk / laser, dirt , ... TOC (Table of Content) could become faulty when seeing unstable reading-speeds.
Try cleaning, having re-adjust the laser. Personally this sounds like a semi-dead player to me. Buy new. When used a lot, invest in a mechanically solid one. Never in my live did one of my players die: it pays of to invest sometimes ...

p_n


Edited by - pinc_noiz on 9/9/2006 11:31:54 AM

Bill All-Star Supporter
All-Star Member

5334 Posts
6/00
Posted - Sep 9 2006 : 11:50AM
If it's a dual layer disc, the second layer is read the opposite way...from outside to inside. Often, discs have problems on the second layer, which is why the early scenes play OK, then the later scenes have a problem.

Evil Angel used to have a problem with this because there was something wrong in the manufacturing process of one of the companies that they used. This problem was taken care of a couple of years ago and I haven't had a problem with an Evil Angel disc since. Since Evil Angel used multiple manufacturers when they were having their problems, they were able to replace the bad discs of anyone who asked.

Lately, I've noticed LOTS of discs that are dirty right out of the case. I assume that this is due to the fact that the putting DVD's and the sleeve into the cases is a manual process, not an automated one. I've had very few discs that continue to not play properly after I have cleaned them with a clean cloth.

pinc_noiz
Deactivated User

758 Posts
6/05
Posted - Sep 9 2006 : 1:09PM
You're right. Even then Bono-One's problem remains most likely a poorly aliened laser, instable disk / laser, dirt, wear, ... Dump the machine, as planned, and invest in quality
Actually it's dirt from the stamping machine. Luckily production of DVD/CD's is fully automated.

p_n

Bill All-Star Supporter
All-Star Member

5334 Posts
6/00
Posted - Sep 9 2006 : 1:24PM
I'm not talking about the production of the DVD's. I'm talking about the guy in a warehouse with a pile of DVD, boxes of DVD cases and a stack of cover inserts who's job it is to stand there, and put a DVD and an insert into each case.

The stamping machine doesn't have any parts that leave dirt in the shape of a fingerprint, which is what I've been seeing on a lot of brand new discs lately.

Edited by - Bill on 9/9/2006 1:25:13 PM

 
bono-ONE All-Star Supporter
All-Star Member

SAMCRO
8571 Posts
8/00
Posted - Sep 9 2006 : 1:38PM
Thanks guys, I do want a new player but until then I'll take the occasional bad one, it's not all the time but it is frustrating when it occurs.
pinc_noiz
Deactivated User

758 Posts
6/05
Posted - Sep 9 2006 : 2:04PM
Hopefully fingerprints give no DVD/CD player problems like bono-ONE wrote, when trying to read a disc ...

Good thing bono-ONE is going to buy a new one

Bill: visit a manufacturer see watch how discs are being produced. It's worthwile cleaning every new bought disc, to prevent dust sticking on this residual grease in time.

p_n

Edited by - pinc_noiz on 9/9/2006 2:09:32 PM

Hardware All-Star Supporter
All-Star Member

Your other left
14595 Posts
3/02
Posted - Sep 9 2006 : 2:07PM
I have problems with my player on occasion. One time I discovered that the disc had a layer of crud on it. A little water and a soft cloth fixed that problem. I do have a couple of DVD's that aren't authored worth crap, and I can't use any functions other than "Play" on those. More often the player hits a spot it has trouble reading. So far, removing and reinserting the DVD has fixed that issue, so I assume that's on the laser head.

My all time favorite, though, is the first time I got an Evolution Erotica DVD. I popped it in the player and nothing happened. I fiddled around for several minutes before I discovered that there was a protective paper sleeve on the data side of the disc. D'OH!

Bill All-Star Supporter
All-Star Member

5334 Posts
6/00
Posted - Sep 9 2006 : 2:11PM
You'd be surprised how often my PC's DVD player has a problem with discs like these. Pull them out, wipe them off, put them back, no problem.

I'm not talking about clean fingerprints where it's just oil from the skin. I'm talking about dirty fingerprints as if the warehouse worker had just fixed a forklift prior to inserting DVD's into cases and didn't wash his hands in between.

pinc_noiz
Deactivated User

758 Posts
6/05
Posted - Sep 9 2006 : 2:16PM
Where do you buy your DVD's ???
Luckily we men have a towel on hand all the time, to clean wipe and polish !!

p_n

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