Date   : Wed, 13 Jul 2005 23:15:19 +0100
From   : "Colin" <cwhill@...>
Subject: Re: floppy discs

Ok, bear with me here as this is getting a little too technical for me and I
perhaps have a too simplistic view of disks and disk drives..
I'm going by a PC floppy which you shove in, format it to clear any gunk on
it and have a disk you can use (regardless of what was on it before).
I got this pile of disks and I want to scrub everything off them and use
them for the BBC Micro.
Is what you are saying that these disks are not compatible with a disk drive
for the BBC and cannot be reformatted for use with it? (In other words they
are made differently although they look the same and fit the drive)?
Colin Hill
----- Original Message ----- 
From: "Jason Watton (Lycos)" <jason.watton@...>
To: <bbc-micro@...>
Sent: Wednesday, July 13, 2005 4:30 PM
Subject: Re: [BBC-Micro] floppy discs


> Ooops. MFM (DD) vs FM (SD)... I stand corrected. Sorry!
>
> ----- Original Message ----- 
> From: "Pete Turnbull" <pete@...>
> To: <bbc-micro@...>
> Sent: Wednesday, July 13, 2005 10:07 PM
> Subject: Re: [BBC-Micro] floppy discs
>
>
> On Jul 13 2005, 13:36, Jason Watton (Lycos) wrote:
> > A disk that merely 'fits' in the drive isn't necessarily compatible
> with the
> > Beeb... nor is the 'stuff' on it, unless you know it to be in one of
> the BBC
> > formats (e.g. DFS, ADFS)...
> >
> > As Mike said: DD (Double Density) and HD (High Density) disks weren't
> really
> > designed to be used for Single Density formats (such as DFS).
>
> There is no difference in the media between DD and SD, only in the form
> of the data fed to/from it.  There is a difference between SD/DD and
> HD.
>
> -- 
> Pete Peter Turnbull
> Network Manager
> University of York
>
>
>
>
>
>