C#: Form: DirectX Crash

[pni8ac]

Hi,

I have a software that read video with DirectX, AudioVideoPlayback.
When I open 4 or 5 instance of the my software, and I load different video, everything work great, but if I stop a divx video, I got a blue screen.

There my code to play the video:
media is a string to the video's path, and everything is in a try/catch

                playerVideo = new Video(media);
                playerVideo.Owner = pnlVideo;
                pnlVideo.Visible = true;
                picVideoX.Visible = true;
                if (playerVideo.DefaultSize.Height < 30 && playerVideo.DefaultSize.Width < 30)
                {
                    pnlVideo.Size = playerVideo.DefaultSize;
                }
                else
                {
 
                    if (playerVideo.DefaultSize.Width < playerVideo.DefaultSize.Height)
                        pnlVideo.Size = playerVideo.Size = new Size(350, (350 * playerVideo.DefaultSize.Height) / playerVideo.DefaultSize.Width);
                    else
                        pnlVideo.Size = playerVideo.Size = new Size((350 * playerVideo.DefaultSize.Width) / playerVideo.DefaultSize.Height, 350);
                }
                pnlVideo.Left = (this.Width / 2) - (pnlVideo.Width / 2);
                pnlVideo.Top = (this.Height / 2) - (pnlVideo.Height / 2);
                picVideoX.Top = pnlVideo.Top - picVideoX.Height;
                picVideoX.Left = pnlVideo.Left + pnlVideo.Width - picVideoX.Width;
                playerVideo.Play();
 

And here my code to stop it:

                if (playerVideo != null ? (playerVideo.Disposed == false ? playerVideo.Playing : false) : false)
                {
                    playerVideo.Stop();
                    picVideoX.Visible = false;
                    pnlVideo.Visible = false;
                    playerVideo.Dispose();
                }
 

Anyone have a idea why it crash like that?