8" floppy system needed to recover old game data

[Kieron Wilkinson]

> -----Original Message-----
> From: Allison
>
> >I'm afraid I am not very familiar with CPM systems. Could you please 
> >tell me why a conversion system is needed? Didn't they use 
> similar FDC 
> >chips? I (perhaps naively) assumed it would be some sort of a 
> >NEC765-derived one and we could get a simple track-by-track dump...
> 
> No. the 765 was available for sale in late 1980, CP/M systems were 
> 3+ years old by then.  Even after that point the 765 was not the
> common part used for CP/M systems.  That a PCism.

Okay, thanks for putting me straight. I think my confusion stems from my
experience of the Amstrad CPC computer that IIRC ran a CPM-derived
operating system, and used the 765.

> CP/M systems were largely a common coperating system a that allowed
> for diverse hardware by way of a BIOS that the user or manufacturer
> could configure for that hardware.  There were many different disk
> systems, formats and in the games space deliberate attempts to make 
> the disks uncopyable by standard systems.

What a nightmare!

> What you need is a CP/M familiar person here (actually close 
> to the developer)
> in the usa and the data once extracted can be shipped via the 
> internet.
> Systems that convert formats are common enough for people 
> that actively 
> collect and restore.

Well that is good news at least.

> >> The only "local" one I can think of from the top of my head, 
> >> is Sellam Ismail
> 
> IF its in San Fancisco hes' loads closer than me (3000 miles!).

Seems he lives in California at least. Maybe I can convince him to make
a trip... ;)

Kieron

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