The current StreamSpot Player uses HTML5. If you're having issues viewing the StreamSpot player using HTML5 it's likely due to your current Encoder or Encoding software not being HTML5 compatible and the player defaults back to Flash. If your current encoder does not encode in H.264 it will likely cause the player to default to a Flash-based player to support your legacy encoding type such as VP6 or non-AAC audio.
Please see our Best Practices for encoders and encoding for what we suggest. If you have any questions please feel free to reach out to support for more information.