) Values for device type: 00h 320K/360K 5.25-inch floppy disk 01h 1.2M 5.25-inch floppy disk 02h 720K floppy disk 03h single-density 8-inch disk 04h double-density 8-inch disk 05h fixed disk 06h tape drive 07h (DOS 3.3+) other type of block device, normally 1.44M floppy 08h read/write optical disk 09h (DOS 5+) 2.88M 3.5-inch floppy FFh (some DOS 5 betas) 2.88M 3.5-inch floppy