You can approach it from these two possibilities: LocalConnection or ExternalInterface .
I would go with ExternalInterface personally. With it, you can set up a javascript function that receives a call from videoPlayer_1 when its video ends. To this javascript function, you can pass an identifier to determine which player has finished, and then send a call back to the appropriate next player to start playing. You can repeat this process as many times as you have / swf with the video.
I would include an example, but you did not mention as2 or 3.
As for LocalConnection , you can create a movie group with a local data connection, but it can be easily broken by certain scripts of several browsers / swf, so this is probably not the most reliable method. However, if you want to take a picture, look at the Grant Skinner SwfBridge class to make things a lot easier.
source share