please help !!! searching for a psx.exe to play selfmade videoclips (*.str)

Hi specialists,
now I was able to convert my short videoclip to the *.str format.
At Robins Page ( ####://batman.jypoly.fi/~robin/psx/docs.html ) I found how to build an own boot cd that could play my video, but:
I'm still missing a player for the psx, which I could rename to PSX.EXE to build my CD...

Any help ???