Nintendo Wii Console "dvd message valid disc" Questions

...DVD's, so this SHOULD work. When I hit x to load program, all i hear is intermittent single clicks from my ps2, then after a bit the clicks get loader, then it returns "Not a valid PS2 disc" Any ...

...dvd, and there is no error message, it just says Open Tray,like if nothing is in the system Everthing was working great this morning, came home with a new Game and after I put it in the tray, it said ...