I discovered an odd behavior with .swf files and @unique 1 set in jit.qt.movie. Open the attached flash file in qt.movie and toggle unique on/off. With unique on, it doesn’t advance the frame until it loops. With unique off, it plays normally. I’m guessing it has to do with flash format oddities and the guessing game of "unique", but thought it should be documented. As it is now, if unique is on, one would have to detect for .swf, and toggle the unique off for those files.