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Discussion in 'General Mac Discussion' started by TyWahn, Nov 9, 2003.
Can somebody please explain how a
4.7 GB DVD-R turns into 4.28 GB when ready to burn?
Volume information. If you use, I believe, Disk Utility or Toast I believe you can get more (4.4 with Toast). Same way my 60GB harddrive is only 55.6GB in capacity.
Probably also something to do with the way "megabyte" and "gigabyte" are defined.
4.7GB assumes 1000^3 and 4.3GB assumes 1024^3, is my guess.
Quoted from www.dvdrhelp.com
DVD-5 is a single sided single layer DVD that stores up to about 4 707 000 000 bytes and that is 4.38 GigaBytes where 1 kilobyte is 1024 bytes(4 707 000 000B / 1024 = about 4 596 679KB / 1024 = about 4489MB / 1024 = about 4.38GB) . Video DVD, DVD-R/W and DVD+R/W supports this format. Often referred to as "single sided, single layer".