[Ti] OT Durability of DVDs

[Greg Markle]

> -----Original Message-----
> From: Murray Kastner [mailto:murrayka at mac.com]
> Sent: Wednesday, September 10, 2003 9:33 AM
> To: PowerBook G4 Titanium List
> Subject: [Ti] OT Durability of DVDs
> 
> 
> Now someone tells me that there may be a lawsuit going on 
> somewhere in 
> Europe for precisely opposite factor. Can anyone either confirm, deny 
> or advise on this? I was of the opinion that videocassettes fade with 
> time while DVDs are much, much longer-lived.
> 

It seems that the same general misconception that occurred between the longevity mass-produced CDs and recordable CDs is popping up now that DVD recordables are gaining popularity.  What you need to remember also is that a DVD produced in a factory press is going to last MUCH longer than a recordable DVD.  A production DVD, a mass-produced movie or data DVD, is made by pressing the image into polycarbonate whereas a recorded DVD is made by creating the image of "pits" in a dye layer.  It's the deterioration of the dye layer which is the huge problem and that isn't a problem in a pressed disc.  That is not to say that pressed DVD's are eternal but they will last much longer than a recordable under similar storage conditions.


Gregory Markle, Color Technician
Kleerdex Company - http://www.kydex.com/