Installing a JiffyDOS
I made two videos when I installed my JiffyDOS into my Commodore 64 and the 1541 disk drive.

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Below are those videos

How to Install a JiffyDOS into a Commodore 64
httpvh://www.youtube.com/watch?v=5i1oBDXvWQ4

Installing a JiffyDOS in a Commodore 1541 Disk Drive
httpvh://www.youtube.com/watch?v=_HiAmKLEm9Y