My Nintendo Wii is not reading any discs?

I went on Call of Duty Black Ops this morning and I was online in a match. Then it suddenly turned off, then when I took the discs out and then put it back in and it would not read. It will not read any of the discs. I have cleaned at least 2 of them and tried it, still would not work. I do not really want to send it away or spend a lot of money for it to be repaired. Any idea?