NeXT MO disks

From: Jerome Fine <jhfine_at_idirect.com>
Date: Mon Feb 26 19:49:39 2001

>Mark wrote:

> A question about MO disks and the Canon MO drive installed in some NeXT cube
> computers.
> I know NeXT MO disks are single-sided, commonly quoted as having a capacity of
> 256MB.

Jerome Fine replies:

I have some rather old MO disks as well, but they are made by Sony and are for
a 5 1/4" Magneto Optical Disk drive - an S501. They are very close to 290 MBytes
on each side and are formatted for 512 bytes per sector.

I don't know anything about the NeXT hardware, but if the shoe fits, ....

> Canon used to make document imaging systems with built-in 500MB MO drives for
> data storage. These used double-sided disks of around 250MB per side. They
> also made the Diskfile 5001S, an external SCSI MO drive. The Diskfile 5001S
> allowed data from the document imaging systems to be transferred to computer,
> and also functioned as a general-purpose storage device.

Since 250 MBytes per side is close, they might be the same as the ones I have.
Mine are 5 1/4" disks and formatted at 512 bytes per sector and hold about
295 MBytes on each side for a total of about 590 Mbytes per disk.

In addition, a friend of mine has a large number of these disks which he no longer
wants. For a nominal charge plus shipping and handling, I am sure that they can
be made available. The shipping alone (these weigh about 1/2 lb. EACH) will
likely be more than the disks, so I do think it is a good deal. On eBay, they
often try to get the suckers to pay over $ US 5.00 a disk just to start, although
sometimes they start at a more reasonable $ US 2.00 each. I am in Toronto,
so the shipping may be more than you want to pay!

Does anyone have a requirement. I suspect they will only be available until the
end of February. So please act fast.

Sincerely yours,

Jerome Fine
Received on Mon Feb 26 2001 - 19:49:39 GMT