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Re: How many K does a ProDOS Apple IIe of IIc floppy hold?



Stainless Steel Rat wrote:
>
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> Nathan Mates writes:
>
> >    Maximal capacity is 140K (35 tracks * 4K/track).
>
> There are several instances of a hack that will push that up to 160K.
> Early 5.25" disk mechanisms (Shugart?) could not reliably handle more than
> 35 tracks.  But the next generation, starting with the second or third
> manufacturing run of the Disk ][ drives (IIRC) could handle 40.
>
> DOS 3.3 is hard-coded with a 35-track limit in three places; the
> aforementioned "hacks" are nothing more than changing the value in those
> three locations from 34 (first track is 0) to 39.
>
> ProDOS can handle much larger volumes, but I do not know of any similar
> hacks for it.
>
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> --
> Rat <ratinox@peorth.gweep.net>    \ Happy Fun Ball may stick to certain types
> PGP Key: at a key server near you! \ of skin.
>                                     \

Is there some place where I could find information on this 'hack'. Perhaps I
can use it to make a larger disk for saving games. That is all I use DOS 3.3
for. Any practical work gets done in ProDOS or GS/OS.

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