DJL
From CPCWiki - THE Amstrad CPC encyclopedia!
DJL (Dave J Looker) is mainly known as the co-author of the Speedlock protection system.
A fast loader and protection used on many cassette games, and as a protection on disc games released in the UK.
But he was also the author of several Amstrad games including 3d Stunt Rider and Nigel Mansell's Grand Prix.
