Knoppix file size

[Dave_Bechtel]

(Your Maths teacher weeps nightly at the thought of you) (but then again so does mine)

--We need to talk about KB here, not MB.

700*1024 = 716800KB CDR possible size
733,825,024 / 1024 = 716626KB ISO size, with space left over

Number of bytes on a maxed-out regular 700MB CDR: 734,003,200
Size of the ISO: 733,825,024

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= IT FITS
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--I repeat again, the BIN image is no factor here, we are talking about ISO's.

But if the 700mb CD-RW is only 734,000,000 bytes, however I noticed that the actual file size for the Konppix live-cd BIN image is 823,001,000 bytes, so how is this possible?
Thanks a lot.
Oscar