Being a complete novice when it comes to movie making, I decided to finally take the plunge. First, I tested your commands on the prototypical 1nmr file which worked great with the commands that you had described. However, when I tested the same commands on a 212 state DCD file the results were mixed.
#load trajectory with 212 states load structure.dcd
When I play this movie, the first frame corresponds to the first state but all other frames display a blank image. Perhaps I'm misunderstanding the commands here? Any clarification would be greatly appreciated!