Here is an NZB (NZB is an XML-based file format for retrieving posts from Usenet servers) file to download all of the Compute Gazettes magazines in PDF from Usenet.
I personally use Newsbin as my downloading program and Giganews server.
DOWNLOAD Compute! gazette
Disk Lock protected your programs from most copy programs.
Place the protection on any tracks from 1 to 40.
Sold by Aquarian Software
Track Trap was a supplement to the Software Protection handbook.
The most unusual and innovative protection analysis tool for the Commodore yet.
Master Lock was a program used to protect your software creations.
Claimed that your software then could not be copied by Nibblers, Disk Maker, Copy II, Ultra Byte or Fast Hackem. So does anyone know what type of protection this program used or how it worked? Sold by MegaSoft.
Bounty Bob Strikes Back by Big Five Software.
This title is know in the C64 world as one of the hardest to copy disk out there.
The only thing thought I knew of that could copy it was Jim Drew’s SuperCard+ and a custom copier.(Version 3 of the Supercard-Plus.)
There are also different version of this disk.
It is also reported that Big Five software never used mass duplicators.
Jim Drew reports that this used completely aligned half-tracks.
C64preservation.com reports that most tracks are in custom GCR format offset 1/2 on each halftrack. Lower-grade version of Spiradisc-like protection from Apple II
A new format of C64 copy protection found 25+ yrs after it’s release?
Most of use know that Bounty Bob was likely to be the hardest C64 game out to copy. But have you tried to copy 21 Second back up? Well it pretty much impossible to copy also. It wasn’t until just recently that Jim Drew (interviewed here) maker of the SuperCard got his hands on an original copy of it. Here is Jim’s Quote from his post on LEMON64,
“Because this disk uses true spiral track protection.
Tracks 10, 10.5, and 11 contain valid data that was written WHILE the head was stepping.
So, the data (which is 10 x 512 bytes long) is written on an ‘arc’ as the disk spins
and the head steps between tracks 11.0->10.5->10.0->10.5->11.0″
Goto the Lemon64 link above to learn more!!