Flash Player-MP3 Compatibility Issue

Does Flash Player 10 hav any compatibility issues in Playing CBR MP3. The reason why I am asking is because of the observation which I made (Given  Below)

I am right now working  on a module "Live Streaming Codecs" for an e-learning application. I used Adobe Flash Media Live Encoder to encode my Live Class using VP6/MP3 & streamed it using Flash media server 3.5. During Testing I observerd a  few hitches and breaks in 'Audio' (Streamed at 56kbps @صفحتي علي ادوبي.1Khz Sample Rate encoded using ) in the client machine. However the video was fine. The Flash player version is 10. The same problem was there on all clients. But if I used AAC for audio (Encoded using VLC & streamed using Wowza Media Server) the audio was fine. So does this prove that Flash Player does have some Compatibility Issues with MP3 or is it some problem with my settings?

Please help me out to resolve this issue !

-Prem