In practice, the term "DVD" refers to all DVD formats. The phrase "rewrite the data on the DVD" really means "rewrite the data on the DVD-RW or DVD+RW." See DVD.
Phase Change Recording
In rewritable DVDs, different intensities of the laser turn bits in the phase change recording layer between a crystalline state and an amorphous state.
![]() | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2008 The Computer Language Company Inc. All rights reserved. |
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