Adobe Media Server - ByteArray

How are you supposed to access the data in a ByteArray? ByteArray.readBytes reads into another byte array which perpetuates the problem. I want to return the data so that I can manipulate it. What am I missing?

    var data  = new ByteArray();
    var file  = new File(path);
    var pos   = 0;
    var bytes = 500 * 1024; // bytes

    if( !file.exists ) {
        trace(path + ' does not exist');
        return;
    }
   /*
    | Opens an FLV file in binary mode
    */
    if( !file.open('binary', 'read') ) {
         trace('Cannot open file');
         return;
    }

    if( file.length < bytes ) {
        bytes = file.length;
    }
     
    /*
    | Neither valueOf or toString provide the data I want.
    | Both return "FLV" as a value not the data.
    */
    file.readBytes(data, pos, bytes);
    trace(data.valueOf());  // DOES NOT WORK
    trace(data.toString()); // DOES NOT WORK