Movie won't override / record over

Question

Hello all.
I'm working on a project that will be exhibited that requires me to switch between two movies while recording.
While movie 1 plays, movie 2 records. As movie 2 plays, movie 1 records.
If I start my computer and run the program, it'll run well, but over time it won't override movie 1 or 2. It will also play back footage that was deleted as well.
Is there anyway of clear/resetting/restarting some sort of cache or buffer. I'm not sure what the problem is, but it feels like over time as2 or media live encoder won't record new footage or plays old footage.
edit:
I'm using Vista currently.
Perhaps before I added the 10 second interval, I had the movie recording too long?
Here's my coding..
nc = new NetConnection();
nc.onStatus = statusListener;
nc.connect('rtmp://localhost/nabCapture/');
function initStream() {
    ns = new NetStream(nc);
    recVideo.attachVideo(ns);
    ns.play("livestream");
    nsPlay = new NetStream(nc);
function statusListener(statusObj) {
    var code = statusObj.code;
    trace("Code: "+code);
    switch (code) {
        case "NetConnection.Connect.Success" :
            initStream();
            break;
fileListObj = {};
fileListObj.onResult = function(resultObj) {
    _root.dgFileList.dataProvider = resultObj;
    trace("Data Returned OK");
btnRefresh.clickHandler = function() {
    trace("Click");
    getFiles();
function getFiles() {
    trace("Get Files");
    nc.call("getFiles",fileListObj);
liveVideo.attachVideo(Camera.get());
initStream();
Key.addListener(keyC);
var keyL = new Object();
keyL.onKeyDown = function() {
    var keyPressed = Key.getCode();
    if (keyPressed == 65) {
        t = (tFunc=!tFunc) ? functionOne() : functionTwo();
Key.addListener(keyL);
Key.addListener(keyC);
function functionOne() {
    recVideo.clear();
    nsPlay.play(streamName);
    trace("functionOne");
    getFiles();
    recVideo.attachVideo(nsPlay);
    nsPlay.play("movie1");
    break;
    trace("movie2 recording");
    nc.call("startRecord",null,"livestream","movie2");
    Key.addListener(keyL);
    Key.addListener(keyC);
    var timerId1 = setInterval(toExecute1, 10000);
    function toExecute1() {
        endGame();
        clearInterval(timerId1);
        Key.addListener(keyL);
Key.removeListener(keyL);
Key.addListener(keyC);
    function functionTwo() {
        recVideo.clear();
        nsPlay.play(streamName);
        trace("functionTwo");
        getFiles();
        recVideo.attachVideo(nsPlay);
        nsPlay.play("movie2");
        break;
        trace("movie1 recording");
        nc.call("startRecord",null,"livestream","movie1");
        Key.removeListener(keyL);
        Key.addListener(keyC);
    var timerId2 = setInterval(toExecute2, 10000);
        function toExecute2() {
            endGame();
            clearInterval(timerId2);
            Key.addListener(keyL);
            Key.addListener(keyC);
    Key.removeListener(keyL);
    Key.addListener(keyC);
Key.addListener(keyL)
var keyC = new Object();
keyC.onKeyDown = function() {
    if (Key.getCode() == 67) {
        endGame();
function endGame() {
    nc.call("stopRecord",null);
    recVideo.attachVideo(ns);
    trace("infinity");
    Key.removeListener(keyC);
    Key.addListener(keyL);
Key.addListener(keyL);

Answer 1

17 KB's means it is a "reference movie" and the true source is somewhere else.
Any change the file was served from a "streaming server"? URL usually is RTSP instead of HTTP.
QuickTime Pro can't save files served from streaming servers.
Last is that you must let the entire file download completely before using the disclosure triangle in the controller to "Save".