impression operations manual

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My CD says it holds 650MB, and I've selected this setting in Impression's preferences. During archiving it only shows 610MB of available space. What gives?

CD and DVD manufacturers use blocks of 1000 to compute disc sizes, while data is computed using block sizes in multiples of 1024. Disc manufacturers are optimistically sizing their discs about 7% higher than their data capacity.

ImpsAnswer 122, last modified: 2006.02.06


© Copyright 1998-2006 Stephen W. Elliott, All rights reserved.