I know what a sprite is in Director. However, if you take apart a Flash presentation, like the CineAlta one here on the Cow, there are numerous sprites (60 in the CineAlta) extracted by the decompiler ( Flash toolset in my case ). These things seem to be independent swfs. The railroad photo track is seen by the decompiler as a sprite for instance. So is the "Extend the limits..." text slug. Why are they used? Why not just use movieclips? Or another layer? Are they created within Flash? Or output from some other program ( like Swift or Swish or AE and then assembled in flash at the end. Were these presentations created in Director? The CineAlta one is complicated enough, but I have seen the same in very simple Flash movies. Maybe Director devlopers who are working in Flash and bringing the Director workflow with them? Is it just the decompiler does not understand something? Curious minds ( at least one ) want to know.