So this is a bit cooler than adding two numbers together....
Here's my very first bare-bones Flex / red5 video recorder, and a few lessons I learned in creating it.

1) Red5 handles NetSteam's .publish() methods automagically. In other words, your java application does not have to do anything except extend ApplicationAdapter to let you use it from Flex to record video. In fact, if you don't want to tinker with java/red5 at all, you can just use a demo application like oflaDemo as your NetConnection hookup. So if you have red5 running out of the box and do: