I actually have the first two PoP games around here somewhere on 5 1/2 disks...Let's see...EGA and VGA graphics on PoP, VGA only on PoP: The Shadow and the Flame.
This was the first major game to use an early form of motion-capture, called rotoscoping (spelling?) that took FMV and turning it into more basic frames of animation. Other titles used the same engine, including the Blackthorne (I've got that one too) and the first Flashback game (one of the best action-adventure games ever IMHO)
Damn...I would kill for a Flashback sequel (Imagine a cross between System Shock and PoP). They did do one 3D Flashback game, but it really, really sucked. It was at least on CDROM though.
Man, are these 5 1/2's collectors items yet?