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Originally posted by Machina
I still believe that a machine that can build CD-ROMs and CD-Rs perfectly can be made, if you put a good billion bucks in it...
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Send me the billion & I'll send you the machine
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So, if data is being repeated on a CD, then how much REAL space does a CD have? Because when I burn 300Mb file on a CD, it takes up 300Mb .
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Because of EFM encoding, a byte (8 bits) is coded into a 14-bit sequence (hence Eight to Fourteen Modulation), plus 3 "header"-bits (I think), therefore 17 bits in total. So actually, a 700 Mb CD can hold 700*17/8=1487.5 Mb of data - actually, it would be more correct to say 8*1487.5=11900 M
bits, for speaking in terms of bytes would make no sense here - but don't get carried away, for that's 1487.5 "Mb" of "incomprehensible" data, the
real data (the bytes) is only 700 Mb in maximum size, after EFM
decoding.
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There are 10 types of people in this world - those who understand binary and those who don't
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