I realize this is a very old thread… but we're talking about even older computer equipment, so…
If you insert a disk/cartridge in the Bernoulli drive and then reboot the Mac, the system will (should) recognize it without the driver/extension. This is similar to how you don't need a driver for a hard drive to be recognized.
It's been a while, but I don't remember if the disk had to be formatted for Mac for this to work. I kinda' think it wasn't necessary, but I'm not sure. (And I don't have the equipment easily available to test.)
I also don't remember if using this trick gave the drive full functionality. As in, I'm sure you could eject the mounted disk, but I'm not sure if you re-insert it – or another disk – it would mount.