Hoping one of the guru's here can help...
I am currently experiencing a floppy issue with my Power Mac 7300/200 running system 8.5. Every floppy I have tried (2S2D, 2SHD mac formatted, 2SHD IBM formatted) fails to initialize. I have purchased brand new Mac formatted 1.4 floppies as well as unformateed 2SDD floppies. It goes through the entire formatting process then at the very end when it is checking the volume information or calculating free space, it throws the old 'Disk initialization Failed" and spits out the disk.
Every once in a great while, it will decide to read an IBM formatted disk that was already formatted on another computer. But very, very rarely. And when it does, it warns me that there could be errors on the disk.
I have tried 3 different floppy drives and 3 different floppy cables, all have the same result. Yes, I went through all the steps of properly cleaning each drives mechanism (removing old grease) and cleaned the heads with rubbing alcohol.
Fyi, my super floppy drive models are all Panasonic JU-268A026C.
I am starting to think this is a software issue and ran across the following:
You likely need to reinstall the Power Mac Format Patch, which corrects the problems that you are experiencing with floppy disks. The Power Mac Format Patch is required on any Power Macintosh with a 604x process and with a 180 MHz or faster PowerPC processor.
This is exactly my system. The article exactly describes my situation, so the shoe fits.
1) I can't find this mentioned patch, "Power Mac Format Patch", for the life of me. Anyone ever seen or heard of it?
2) Reinstalling an OS is my next step if nothing else works. I will either try 8.5 again, or go down to 7.6.1. Either one I try, I will attempt with the CD images from this site.
My goal is to be able to read/write 1.4mb and 800k floppies.
Any ideas will be greatly appreciated.