This is interesting. I happen to have exactly the same problem with my Plus. I blamed the engineering because I read that 400k/800k floppies were not entirely stable. It was tricky enough to use the machine without using an external floppy drive or HD: having to swap disks back and fourth.
I didn't bother until now, I had other Macs to play with. They had 1.44mb drives.
But if I could make it work. It'd be great. It's the only mac I have that "works" as of now, the rest of them is off to Uni for new caps.
Initially I thought I damaged the disks because I used them on my SE/30 which is running SSW 7.5. I thought the format was different enough to mess up the disks. But I quickly gave up this idea because the disk that came with my Plus worked when I got it, then didn't work for quite some time, then started working again right out the blue. Same happened to a system 3 disk that worked at one point then stopped altogether. Now it doesn't work at all.
I have a cleaning diskette for my SE/30. I use it when I test "new" disks from my latest finds: sometimes the disks are really dead and the dark surface of the disk comes off and ends up on the heads. Would a standard off the shelf cleaning disk work on a 400k/800k drive? I guess so. I'll give it a try next week-end if your problem isn't solved by then.
PS: I totally agree with joethezombie, 800k drives can be used with a 128k as long as you don't use 800k-formatted 800k disks. I think 400k-formatted 800k disks work as well.
I didn't bother until now, I had other Macs to play with. They had 1.44mb drives.
But if I could make it work. It'd be great. It's the only mac I have that "works" as of now, the rest of them is off to Uni for new caps.
Initially I thought I damaged the disks because I used them on my SE/30 which is running SSW 7.5. I thought the format was different enough to mess up the disks. But I quickly gave up this idea because the disk that came with my Plus worked when I got it, then didn't work for quite some time, then started working again right out the blue. Same happened to a system 3 disk that worked at one point then stopped altogether. Now it doesn't work at all.
I have a cleaning diskette for my SE/30. I use it when I test "new" disks from my latest finds: sometimes the disks are really dead and the dark surface of the disk comes off and ends up on the heads. Would a standard off the shelf cleaning disk work on a 400k/800k drive? I guess so. I'll give it a try next week-end if your problem isn't solved by then.
PS: I totally agree with joethezombie, 800k drives can be used with a 128k as long as you don't use 800k-formatted 800k disks. I think 400k-formatted 800k disks work as well.