Embedded .flv - how to detect end of video

i’ve done work with dynamic .flvs (streaming and prog dl) but never really embedded an .flv in the timeline.

now i’ve got three of them embedded and i need to detect when each has finished playing (they will rotate).

I can’t seem to find any good info on how to control playback on an embedded flv (i chose to embed them inside movieclip symbols).

thanks for any help!