Main Page | See live article | Alphabetical index The Commodore 1581 is a 3½ inch floppy disk drive made primarily for the Commodore 64 and Commodore 128 home/personal computers. The drive stores 800 kilobytes using an MFM format different from both MS-DOS (720 KB), and the Amiga (880 KB) formats. The 1581 supports a rather simplistic imitation of directories which are really just partitions and largely unused. It implements faster burst mode access than the Commodore 1571 5¼" drive. The 1581 provides a total of 3160 blocks free when formatted (a block being equal to 256 bytes). It is the highest capacity serial bus drive ever made by Commodore, and the only 3½" one. However, Creative Micro Designs (CMD) made the FD2000 (1.6MB) and other 3½" disk drives. In July 2001, production and sale of the FD2000 was taken over by Click Here Software Co See also: Commodore 64, Commodore 128, Commodore 1541, Commodore 1571 Based on material from FOLDOC, used with permission. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.