DVD REWriters - Dual Layer versus Single

  Ted-319069 20:16 30 Jul 2004

I am looking to procure a DVD ReWriter and need clarification as to the standard to opt for ie. Single Layer (4.7Gb)or Dual Layer (8.5Gb) Could I opt for the Dual Standard and still be able to use 4.7Gb disks for DVD-R & DVD-RW or will I have to do all RW work on dual layer? If so I'll go for the 4.7Gb disk. Interestingly, the prices for single or dual drive are not significantly different hence the question.

  Fruit Bat /\0/\ 20:39 30 Jul 2004

DVD Rewriters - Dual layer ??

huggyg71 Wed, 07.07.04 | 01:19
basically this means you can store twice the data of a single layer dvd.
see crx1600`s link for more info but in simple terms it means that on the dvd disc itself there are two layers that can be burnt or read, each holding up to 4.5 gigs of data each.

when the top layer is full up the lazer re focuses through the top layer which is transparent, to burn or read the second layer which also holds another 4.5gigs.

you may notice this adjustment the lazer does as a slight pause when viewing a dual layer dvd movie. usually you dont notice this if the editing guys place this in a fade to back though. for data storage there will be no pauses.

having ead this yes you can use single layer DVD

Dual layer about £8 each

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