Record Audio in mp3 file format using FMS

Question

I am Recording Audio Using FMS which will record Audio file in FLV File Format default But I like to Record in MP3 File Format. Is it Possible.
And I also Record Video In MP4 File Format using h264 encode. Which Give me Video File in MP4 File Format but When i will try to play that MP4 File it Didn't play. So, I post-processed video with a tool called F4V Post Processor. Now That MP4 Video File Play But Didn't Give me Sound in that Video.
My Code is:
        var h264Settings:H264VideoStreamSettings = new H264VideoStreamSettings();
        h264Settings.setProfileLevel(H264Profile.MAIN, H264Level.LEVEL_3);
        ns.videoStreamSettings = h264Settings;
        ns.publish("mp4:"+FILENAME+".mp4","record");
I search Lot but didn't get the solution. So, Please Give me Solution for Both thing.

Answer 1

The .flv format is a "container" format, not a video format.
So that means that inside the container, you can have a video file and/or an audio file or even just an audio file.. which most likely is already an mp3 file. Use something like "FLV Extract" to break open the container and see:
http://moitah.net/
But really, for any Web delivery of audio, the .flv (audio only) method works just fine. Lots of media players available for the Flash .flv file.
For example:
Sounds from my bunk on the Lady Washington
http://exploreolympics.com/reports/?p=2857
Scroll down to third media player.
A little quiet to start with... but this is a .flv file with just an mp3 audio file inside.
Best of luck!
Adninjastrator