I had one of these drives hooked up to my Mac 512K at the time. My 512K had a SCSI card that only supported one device on the bus instead of the typical 7, so I had to shutdown and unplug my external HD and boot from a floppy to use it.

You have no idea how big 650MB per disc felt back then. My hard drive was only 40MB.

It was also amazing to play an audio CD without slowing down the computer, since the headphone jack bypassed the Mac.