Keywords: Verbatim 5.25 minidisk tracks 1978.jpg en The 5 25 inch disk on the left supports 35 data tracks the one on the right with the larger opening supports 40 tracks When Shugart introduce the SA-400 Minifloppy in August 1976 it used 35 tracks In 1977 Wangco Inc of Garden Grove California announced the Model 82 Micro Floppy that was compatible with the SA-400 but it supported 40 data tracks The diskettes for the Shugart SA-400 Minifloppy were jointly developed by Dysan Corporation and Information Terminals Corporation The claim of copyright is for the contents of the disk not the hand made labels These provide a date the disks were first used Disks scanned with an Epson Perfection V500 Photo scanner Own Swtpc6800 en User Swtpc6800 Michael Holley 2010-01-17 <gallery> File Shugart SA 400 Minifloppy Bottom jpg File Shugart SA 400 Minifloppy Drive jpg File Shugart SA 400 Minifloppy Front jpg File Shugart SA 400 Minifloppy Rear jpg File Shugart SA 400 Minifloppy Top jpg File Shugart SA 400 Minifloppy With Disk jpg File Shugart Minifloppy Ad Sept 1977 jpg File Shugart SA 104 Minidiskette jpg File Dysan Verbatim 5 25 disks 1978 jpg </gallery> Shugart Minifloppy Verbatim Corporation Photographs by User Swtpc6800 |