Just comparing the two, it appears that the files at Help3D may in fact be the same files. I'm not a member, but there were 23 "sit" files listed in the Help3D Members Only section that have similar file names to the 23 "sit" files in the free file at stanford.edu. Who's zoomin' who? Anyone a member there? Just wondering if the files there are attributed to Futurelight/Santa Monica Studios as are the files at Stanford.