Re: Funny thing, my iMac now recognizes all CD Roms as ProDOS volumes

[dempson@actrix.gen.nz (David Empson)]

Obsbedia2 <obsbedia2@aol.com> wrote:

>       I'm running OS 8.6 on an iMac with a SmartFDD 1.44 Meg external
> floppy disk drive by Microtech.  I often transfer files back and forth
> from the iMac and the Apple IIgs or IIe.  The day after running the last
> ProDOS transfer, I placed a CD Rom in the iMac and it told me "This disk
> is unreadable by this computer.  Do you wish to initialize the disk?
> Yes/No"  The "options" for initializing aren't the usual options.  It
> lists "ProDOS OK" and a blank option category only.  No Mac or IBM options
> with the size listed.  Even ProDOS always lists the size ; never "OK."
>       Answering "Yes" or "No" results in the same action.  The disk is ejected.

I think the choice for initializing as ProDOS is a red herring.  This is
probably a minor bug in the ProDOS file system support which doesn't
suppress it as an initialization option for read only media (other file
systems are correctly suppressed).  ProDOS support is the only one with
this bug, hence it is the only option appearing for initialization.

The initialization dialog is appearing because the computer thinks it
cannot read the CD-ROM.  The problem is more likely to be with "Apple
CD/DVD Driver", or it could be a hardware problem with your CD-ROM
drive.

Can you boot from the system CD?  (You'd have to insert it immediately
after restarting, and hold down the 'C' key.)  If so, the problem is
almost certainly with something in your hard drive's system folder.