I can adjust the heads any which way, and they will still read and write disks that were initialised on the Macintosh, same with the track stepper motor, it doesn't matter. It briefly was able to read the header again today but then gave up with an error message. It can definitely read and write to the full 1.4mb. I'm willing to buy a new used drive at this point, pulling my hair out. I have cleaned the heads repeatedly, again they work fine with disks initialised on the Classic. Is there something I am missing? By physically manipulating the head and disk, I was able to force the Mac Classic to read the correct volume label just once - and got an error message straight away. I assumed this was a head alignment issue, but I've tried everything (without having an oscilloscope) to get it readable again outside the Classic, with no luck. If I use a disk I initialised on the Classic, and reformat it in WinImage, the Classic only sees the previous volume label of the disk - still works, as if it were never reformatted! Reformatting old disks on WinImage results in a track/head error, unless I also specify an image to write to it (System 7 software). If I format a brand new disk on WinImage with System 7 software, the Classic won't read it. I have been using brand new disks, so am ruling them out.

Now, they are completely unreadable, except when used on the Classic, where they work fine.

Previously, I was able to read and write to floppies that were initlialised on the Classic in a USB floppy drive attached to my iMac (also tried with PC software WinImage). I did a lot of work to make the auto eject mechanism functional again, but I have somehow managed to cause more problems. I'm reposting this original post from Applefritter, I'm a bit desperate.įirst time in the world of the classic Macintosh, I have a Macintosh Classic with the SuperDrive (1.44mb).

Macintosh format floppy disks