Date   : Sat, 15 Oct 2005 22:51:29 +0100
From   : Tim Fardell <tim.fardell@...>
Subject: Re: My New Baby Has Arrived!

Tom Seddon wrote:
> Tim Fardell wrote:
>>No, you're thinking of 3.5" disks - they have the extra hole. I have 
>>heard tell that you can cut an additional notch in the other side of a 
>>5.25" disk, and make it work either way up in the drive, but I can't 
>>understand how that worked unless the drive ignored the index hole as well.
> 
> You'd need 2 index holes as well. Then the sectors on the other side 
> would just be 180 degrees out. (This would mean you couldn't treat the 
> other side as drive 2 on a double-sided drive, because sector 0 of side 
> 2 would be in the wrong place from that point of view, but it would work 
> if you turned the disc around.)

You could fit a switch to your drive to reverse the polarity of the motor and 
spin the disc the other way when your writing to "side 2". ;-)