V-Max Copy Protection for Commodore 64 disk.

There was four main versions of this copy protection, then some versions with variations.
V-max protection was used my many different publishers including Activision, Cinemaware, Mindscape, Origin, Sega, Taito, Thunder Mountain and a few others.

There are already some great write ups on V-Max including this one from Pete Rittwage HERE: http://c64preservation.com/vmax

There was copiers that could make copies of V-Max software in the 1980’s like Burst Nibbler and Supercard. Plus many others that could copy a V-Max protected disk then you applied a parameter (crack) on the copy for it to work, like Disk Invaders, Fast Hackem, Maverick, etc.

There is also a NEW release in the V-Max copy programs called: Revolution V by Lord Crass. This program can be found here: http://csdb.dk/release/?id=134573

Even MORE information can be found here from a Post by Lord Crass made on the Lemon64 forums: http://www.lemon64.com/forum/viewtopic.php?t=53555&sid=9a9eb0a45e6d2d3935ec13d502aaeef5

PirateSlayer was a name of a type of copy protection used on many Electronic titles around 1985 – 1987. The best detail description of PirateSlayer is by Pete Rittwage on his web page here: http://c64preservation.com/pirateslayer

The oddly named protection device called a DONGLE was plugged into the Commodore’s tape port or the joystick ports. When the program would load it would check for this Dongle, if it was there the program would load, if not the program would not.

Here a list of Commodore software that I know used a Dongle as it’s form of copy protection.

10th Frame: used the dongle on the tape port
Coco
Coco 2
Insta-Calc (some version)
Leaderboard
Leaderboard World Class
Neutral Zone
Paper Clip’s dongle fits into the Joyport,

This type of protection is not disk based, but something that came with a game that you had to make up items on the wheel and enter data into the game for it to start.
So you could usually copy the disk easily, but need this device to play.

The most famous example is the code wheel from the Secret of Monkey Island.

Some others include

Bard’s Tale III
Monkey Island 2
Neuromancer
Out of this World
Pool of Radiance
Secret of Monkey Island
Zany Golf

The ZoomFloppy will allow you to copy Commdore files from your PC to your 1541 or your 1541 to your PC through a USB port. You can take a .D64 file to your Commodore disk, Or you can copy your Commodore Disk to a .D64 format to your PC. Plus tons more things.

httpvh://www.youtube.com/watch?v=zbfHfI0_L5c

Data Under Errors is referring to “Weak-Bit’ Protection