Missing from the list are:

Ghost in the Shell: Stand Alone Complex Demo Disc (PS2)
SLUS-29123

Official US Playstation Magazine Demo Discs (PSX)

I own numbers 14 (Nov 98) and 24 (Sep 99)

14 has playable demos of
Medievil
WarGames Defcon 1
Dragon Seeds
G-Darius
Future Cop LAPD
Colony Wars Vengeance
and non-playable demos of
Crash Bandicoot: WARPED
Tenchu
Tai-Fu
Rugrats
Abe's Exodus
Brave Fencer Musashi
You Dont Know Jack
Threadz

24 has playable demos of
Un Jammer Lammy
Sled Storm
Monaco Grand Prix Racing Simulation 2
Chocobo Racing
Pong
and non-playable demos of
NCAA GameBreaker 2000
NFL GameDay 2000
Toy Story 2
Vigilante 8: 2nd Offense
Thrasher Skate and Destroy