I just wasted a few hours trying to get my Actionscript to catch navigation cue points that were supposed to be embedded in a F4V video. The original video was converted in Media Encoder CS4 from an AVI. What’s strange is that when I import the F4V into Flash and attach it to the FLVPlayback component, the component inspector clearly lists the cue points. But nothing is fired when the video plays. This post identified the bug. I’m still not sure if it’s a problem with the encoding process in Encoder or if it’s with the F4V wrapper format. I guess it’s back to using the FLV format.