There are some techniques out there to write beyond the capacity of a floppy disk, I'm not sure if that works on Macs or not but Microsoft was known to do this with Windows installer floppies. It saved disks and made them hard to copy - that was awesome for them.

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Yea, and I remember that. It was called the 1.68MB DMF format, and you had to use shareware GRDUW Disk Utility to format those, and copy/rip those.

I loved that utility as it allowed me to make Win95B and Win95C floppy installs so i could put them on my PS/2 back in the day. Boy, those were the days. It would also do a weird 1.78mb format as well squeezing as many sectors as it possibly can per track. It was great for those disks that had files just slightly too big to fit, and you didnt feel like using a file split utility. But, it came with its drawbacks, and one was reliability. Squeezing that amount of capacity had issues with bad/weak sectors sometimes.

And MS hasnt changed a bit, they still do those weird formats with their game consoles.