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Chet Davis

Good point David -- I understand as well that the actual capacity can vary ever so slightly between disc manufacturers (still within standards but could be confusing to someone who watches the precise capacity between different brands of optical media).

David Adame

Don't forget that you lose some capacity due to formatting on a disc (just as you do on a hard drive - ever notice that your 500GB computer hard drive only shows as 465GB?), so all of the space on a disc isn't really available. The use-able space on a 4.7GB DVD-R, for example, is actually more like 4.2-4.3GB.

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