Early Mac Utilities & Productivity on Floppy Disks: Retro Software 🍎➕🍏
Compatibility: Macintosh 128K can only read 400k disks. A Macintosh 512K can only read 400k disks unless the floppy drive has been upgraded, in which case it can also read 800k disks. All other compact Macs can read both 400k and 800k disks.