"AVI" — Microsoft AVI format (.avi)
"FLV",
"SWF" — Adobe Flash video files (.flv, .swf)
"QuickTime" — Apple QuickTime multimedia container
"GIF" — GIF and animated GIF (.gif)
"Animation" — video content as an animation object
"Data" — frames given as a list of raster arrays
"Rules" — rules for all elements
"Elements" — all available elements
