heyas; i always tried to figure out what the deal was between ray dream and corel. they wouldn't tell me. :) last i recall, corel 5... or 6... had corel dream 3d, which was ray dream 3... or 4. but not ray dream studio. at that time, ray dream sorta split into ray dream designer, which was the same 3d modelling app it had always been, and ray dream studio, which also had animating things and some other extras. not long after that, ray dream sold rdd/rds to metacreations. yet corel still had a version. was the new corel version updated from 3 to 4 (or 4 to 5) concurrently with ray dream's update? i don't know; i haven't seen the corel dreams. (i quit upgrading at corel 5.) so.... yes, corel dream 3d is ray dream designer, or at least closely related. they are not exact. they may have diverged even more as time went on. but you can always try the ray dream tutorials in corel dream. :) and i happen to LIKE ray dream's interface. okay, maybe it's not pretty, but it is functional. (unlike some kai-ish interfaces i can think of.. ::cough cough:: ;) )