My dvd player is not working, its making me real mad

But when I put in a dvd, I get the message "WRONG DISC"

I tried turning it off, that don't work, I tried a whole lot of different dvds, they all don't work

I even tried to put in a dvd cleaner and it won't even do anything with that

I still get the same message

"WRONG DISC"

Help me someone, please.

I hate watching movies on my computer.

If you have access to the LENS,(it reads the disc) and wipe with dry Q-Tip. Has helped many times.