On Thu, 8 Mar 2001, Magnum wrote:
> "Mike A. Harris" wrote:
> >
> > What is the proper maximum size for a standard 650Mb CD image in
> > bytes?
> >
> > Is it 650 * 1024 * 1024? I'm just curious how the calculation is
> > made?
>
> Here is my calculation:
>
>
> blocks:
> 650MB/74min 335100
> 700MB/80min 359849
>
> audio (2352 bytes/block):
> time bytes
> 650MB/74min 74:28:00 788.155.200
> 700MB/80min 79:57:74 846.364.848
>
> data (2048 bytes/block):
> bytes
> 650MB/74min 686.284.800
> 700MB/80min 736.970.752
>
>
> Sorry, but I can't remember, from where I got this information.
75 sectors/second
audio sector = 2352 bytes
data sector = 2048 bytes
75*60*74 = 333000 sectors in 74 min
2352*333000 = 783216000 bytes (audio) = 747 MB
2048*333000 = 681984000 bytes (data with error correction) = 650 MB
/Björn
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