I decided to look a bit at OSDSYS 1.10a/20000727. For those who are interested: 0x200258 appears to load all sounds. 0x204E98 is the giant file loading function. 0x205330 is the function referencing the filenames of the resources. 0x2290f0 is the function for loading image assets. 0x2239B8 appears to be another function for loading image assets. 0x227E00 appears to load all "C" image type. 0x209C30 appears to load all fonts.