Investigator Digital DRIVE Diagnostic DISK(DDDD)
DRIVE Test and Alignment for YOUR ATARI ST DISK DRIVE

It does NOT require an Oscilloscope to test(AND FIX) the Alignment of a disk drive.

By Dysan For Atari ST Computer Disk Drives 3.5”

This is a Digital drive Diagnostic disk that includes Atari ST software on it to test 3.5" disk drives.

I have used it with TOS 1.0 and 1.2. It does not work with Rainbow TOS 1.4

This disk will not run on IBM or Amiga or Apple computers.

It was specifically made by Dysan to run on the Atari 520/1040 ST 16 bit Computers.

DO NOT USE ON HD DISK DRIVES.

IT WRITES TO THE DISK WHEN RUNNING IT AND CAUSES AN ERROR ON THE DISK.

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