Re: 1541IDE

Re: 1541IDE

From: Marko Mäkelä <>
Date: Mon, 15 Jun 2009 10:17:57 +0300
Message-ID: <20090615071757.GA28114@x60s>
On Mon, Jun 15, 2009 at 08:52:59AM +0200, wrote:
> I yet have a question regarding the formatting. When formatting a
> floppy, the header of a sector will hold the original ID. If I copy an
> image to floppy W/O formatting the ID found in track 18 / sector 0 won't
> match with the ones in the headers. Could this lead to problems? TIA!

It can only lead to problems with custom software (fastloaders or copy
protection).  The ID bytes in the low-level format, in the disk block
headers outside the 256-byte payload, are completely different from the
disk directory header that is displayed in the directory listing.

The only thing that matters is that all sectors of the disk carry the same
ID bytes.  Some copy protection schemes deliberately break that.  If I
understand correctly, the G64 image format should capture that.  The D64
format only contains the data payload, and optionally some error information.


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Received on 2009-06-15 09:32:12

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