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Dye Types
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Pattykmn
Newbie
_ 		19. October 2004 @ 19:12 _ Link to this message    Send private message to this user   
I'd like to know more about the different kinds of dye types.
Mine said "phase change".
I want to know how many different types there are and what do they mean?

thanks :)
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herbsman
Moderator

3 product reviews
_ 		19. October 2004 @ 20:03 _ Link to this message    Send private message to this user   
moved
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Higgsbsun
Member
_ 		20. October 2004 @ 00:29 _ Link to this message    Send private message to this user   
Phase change disks don't use dye, they have a crystaline layer for data storage. When heated by a high power laser and then rapidly cooled, the layer becomes amorphous and relatively matte. When heated by a lower power laser the surface anneals and cools into a reflective crystaline surface. The matte/shiny areas encode the data, and as the layer can be reheated, these disks are usually rewritable. DVD+-RW and DVD-RAM disks all use this technology. There is however, a limit to the number of transitions the layer can make, this is around 1000 re-recordings for DVD+-RW and 100,000 for DVD-RAM (which uses higher quality media and bad sector re-allocation).
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Pattykmn
Newbie
_ 		20. October 2004 @ 06:07 _ Link to this message    Send private message to this user   
Thanks :)
What should I look for on DVD+R and/or DVD-R?
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