In the PC Gamer UK Magazine a free DVD (called DVD Gamer) contained extra content for subscribers only if you have the special subscription Password, here are those subscription passwords:
October 2001 - exciter
November 2001 - apeman
December 2001 - flowers
Xmas 2001 - trees
January 2002 - chiller
February 2002 - hobbit
March 2002 - colditz
April 2002 - Heart
May 2002 - clone
June 2002 - dutch
July 2002 - spider
August 2002 - danish
September 2002 - casual
October 2002 - panic
November 2002 - holiday
December 2002 - relax
Xmas 2002 - sleigh
January 2003 - windy
February 2003 - frost
March 2003 - vampire
April 2003 - doctor
May 2003 - big
June 2003 - victory
July 2003 - link
August 2003 - monkey
September 2003 - jungle
October 2003 - coconuts
November 2003 - pencil
December 2003 - bucket
Xmas 2003 - snowball
January 2004 - herbal
February 2004 - scarf
March 2004 - sten
April 2004 - family
May 2004 - fisher
June 2004 - final