21 Second Backup

The 21 Second Backup used special hardware

Claims: The worlds fastest copier! It takes only 21 seconds to duplicate an original diskette, one keystroke provides the user with a complete backup. It works every time!

Here is the software and build notes of this kit: 21 second backup Plus


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  1. Pingback: 21 Second Back up - Spiral track protection - C64 Copy Protection

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