I guess I'll have to dig the old Mac out of the closet and put the 64K ROMs back in it. I was under the impression that the 1.4 drives only worked with the SWIM chips, and didn't respond to the PWM line on the disk interface. I don't think I ever actually tried a "superdrive" on a 128K, so maybe they do work. As for dates, Apple sent us a prototype a few months before release. There were other developers who were seeded with prototypes much earlier.
As for formatting 800K disks with the early ROM and system, I don't remember anything special about it. I was pleasantly surprised to see that double sided disks were recognized and worked as expected. I expect Larry Pina did likewise. I'll check out how my Mac and my 800K drive interact and post part numbers, etc. as I have time. It'll probably be next weekend before I have a chance to tear the old girl down. Hopefully, we'll find a way for you to get disks formatted on your system, though it seems you've found work-arounds already.
As for formatting 400K disks on a late model 68K, wasn't there a utility which formatted disks and gave you the choice of 400K, 800K, and 800K HFS? Wonder if I have copy around here someplace?
As for formatting 800K disks with the early ROM and system, I don't remember anything special about it. I was pleasantly surprised to see that double sided disks were recognized and worked as expected. I expect Larry Pina did likewise. I'll check out how my Mac and my 800K drive interact and post part numbers, etc. as I have time. It'll probably be next weekend before I have a chance to tear the old girl down. Hopefully, we'll find a way for you to get disks formatted on your system, though it seems you've found work-arounds already.
As for formatting 400K disks on a late model 68K, wasn't there a utility which formatted disks and gave you the choice of 400K, 800K, and 800K HFS? Wonder if I have copy around here someplace?