Fast Hack'em

Fast Hack'em was a Commodore 64 nibbler written by Mike J. Henry and released in 1985. It was distributed in the U.S. via Henry's "Basement Boys Software", and in the U.K. via Datel Electronics. [1] In the U.S., it retailed for $29.95.
Features
The most popular feature of Fast Hack'em was its ability to produce copies of copy-protected commercial software. When using the nibbler, disk copying was done on a very low level, bit-by-bit rather than using standard Commodore DOS commands. This effectively nullified the efficacy of deliberate disk errors, nonstandard track layouts, and related forms of copy prevention. Copying a protected disk took approximately 60 seconds if being copied directly to another disk drive, or 3 minutes (plus several disk swaps) if performed using a single disk drive.
Fast Hack'em also included a superfast disk copier that could copy unprotected disks at even higher speeds. Only 35 seconds were required for a direct drive-to-drive copy, or 2 minutes plus swapping time for a single-drive copy.
For all forms of copying, Fast Hack'em could verify the resulting disk copies to ensure that they were valid.
Fast Hack'em was updated quite often, and later versions added even more copying options.
External links
[Fast Hack'em 1.9 (PRG format)]