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All Forums > Tech Talk > Tech Talk Forum Page 37 > DVD demise?
AuthorPost
Endorphin
Luminary


1185 Posts
3/00
Posted - Jan 21 2007 : 12:41AM
I am assuming that this would be the best forum to ask. Today, I popped Flash (the porn) into my DVD player. I chose play movie and it froze. My DVD player wouldn't even repsond to open/close from my remote so I had to push the button on the player. I ejected the DVD and looked at it for possible problems and noticed some discoloration along the outer rim (it is nothing that can be cleaned off). I tried again, then tried just going to the first chapter. It started to play but glitched heavily. What happened to my DVD? It is about 5 years old and I keep it in a folder like you keep CDs in (if that helps.

Thanks in advance for your help.

Drew Black
broken crankshaft

8009 Posts
9/99
Posted - Jan 21 2007 : 2:46AM
Some of the early DVDs had delamination problems much like you have described. I remember there being a problem with a particular duplication company circa 1998/99. I bet there's threads in the forum here under search terms like "dvd rot".
skronker
Notable Legendary Icon

Scopophiliac
9780 Posts
9/02
Posted - Jan 21 2007 : 3:11AM
DVDs are inconsistent. Esp/ porno DVDs.
jrv
Senior Member

1266 Posts
2/03
Posted - Jan 21 2007 : 6:31PM
DVDs and CDs (unlike Vinyl records) play from the inside out so issues on the outer rim shouldn't generally prevent the disc from starting to play.
Is the discoloration on the surface of the disc or on the reflective layer in the disc? A poorly manufactured disc might allow the reflective layer to oxidize if not sealed.

A discoloration on the surface of a disc might indicate something chemically attacked the clear polycarbonate, darkened it.

What kind of folder? Make sure there's no paper involved since acids leaching out of paper can over time darken a disc.
pinc_noiz
Deactivated User

758 Posts
6/05
Posted - Jan 22 2007 : 5:10AM
When a disc is put in a player, it will read the disc' TOC (table of contents): when the outer rim is un-readable, the TOC could become un-readable, making the disc un-readable too in most circumstances.

p_n

 
Endorphin
Luminary

1185 Posts
3/00
Posted - Jan 23 2007 : 2:48AM
Thanks to all for your responses.

jrv, the best that I can describe it. There is a portion of the outer edge that is a not silver. At one point on the outer edge it is, I would say, a brownish red about a quarter inch thick with a slight mixture of silver. As it progresses along the edge the brownish red areas becomes thinnner and there is less silver mixed in. At the moment as I examine the disc I see some minor stratches an fingerprints. Nothing that has prevented play before.

I use a Case Logic folder, much like I have used for CDs and DVDs in the past. I assume you are familiar with it.

Do you think this is a DVD issue or a care issue?

Thanks for your help.

Molon Labe...Oh! And! FREE THE WEED!!!

jrv
Senior Member

1266 Posts
2/03
Posted - Jan 23 2007 : 3:29AM
I'm not familiar with Case Logic - I store archival discs in DVD cases with the label on the outside of the box.

There is a description here http://www.hyperion-records.co.uk/bronzed.asp of one type of "bronzing". This has not been seen on any disc made in the last 15 years. If this is what you have then quite a few people will be very interested.

There is another form of "bronzing" where the entire "bottom" polycarbonate turns a bronze color in a more uniform way. I've seen this in a CD and it is caused by acids leaching a paper insert in the box over time attacking the polycarbonate and darkening it.

If you can find a way to take a pic maybe post to a specialist forum like cdrinfo or cdfreaks.




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