[Coco] Re: BACKUP COCO-ON-DISK

[farna at att.net]

I remember making flippy disks! You could buy them at one time, and the jackets were obviously punched before the disk was inserted. I bought a little hole punch, the kind with a receptacle in the jaw to catch the punch-out. I'd carefully hold the jacket open and slip the punch in the hub hole. I had one of the Apple II notchers to make a nice square notch in the corner. IIRC the Apple II didn't use the index hole, but the IBM compatible drives did. Some people used their hole punch to make a rounded notch in the corner too. 

I finally got a double sided drive and didn't need to use flippies anymore. I just used a poke to read the back side, then got ADOS3 burned into a chip that read the back sides of two drives as drives 2 and 3 (normal "front" sides were 0 and 1). 

--
Frank Swygert
Publisher, "American Motors Cars" 
Magazine (AMC)
For all AMC enthusiasts
http://farna.home.att.net/AIM.html
(free download available!)

 -------------- Original message ----------------------

> On Friday 29 September 2006 16:21, John T Chasteen wrote:
> >It is me again
> >
> >Thanks Gene for info.
> >
> >The next question is backup of Rainbow on Disk. They use "Flippies" one
> >side is RS basic and the other side is OS9.
> >
> >How do you format on one side for the OS9 side?
> >
> I believe they punched another index hole in the envelope (without the disk 
> obviously) and then turned it over, formatting the other side for the 
> default os9 ss35 track format.  I've only seen one of those in all my 
> years though.
> 
> >John