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Chapter 42. Replacing, Upgrading, or Add... > DVD Recordable/Rewritable Drives

DVD Recordable/Rewritable Drives

So far, we've talked only about DVD drives that operate on a read-only format. But DVD drives are also available in recordable and rewritable formats. Do a little research on the Internet and you will discover that there are three competing formats that allow you to record your own DVDs: DVD-RAM, DVD-R, and DVD-RW. Table 42.1 shows the differences between these three formats.

Table 42.1. Comparison of DVD Formats
FormatDescriptionCapacity/SidePossible Rewrites
DVD-RAMRandom access storage2.6GB/side100,000 to floppy disk or CD-RW.
DVD-RWrite-once3.95GB/sideProvides 0 sequential write, similar to CD-R. No overwrite capability.
DVD+RWrite-once3.95GB/sideProvides 0 sequential write, similar to CD-R. No overwrite capability. Slightly less compatible than DVD-R but the blank media is less expensive.
DVD-RWLimited sequential3.95GB/side1,000 rewritability.



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