In Cold Blood (PS1) SONY
Dracula: The Last Sanctuary and Resurrection (PS1) MICROIDS CRYO
Sentient (PS1) PSYGNOSIS
Necronomicon (PS1) CRYO
Amerzone (PS1) MICROIDS
Tunguska (PS1) TAKE 2 (Not related to Secret Files)
Martian Gothic Unification (PS1) TAKE 2
Aztec (PS1) CRYO
Egypt and Egypt 2 (PS1) CRYO
As you can see, Cryo and Microids ported most of their PC titles to the Playstation, and thanks to the wonders of emulation, I can personally attest to most of them (the PAL versions, anyway) working on the PSP (custom firmware, of course), with minimal tinkering involved.
