I just got a game yesterday and i wanted to start playing today.But when i pressed play it said it "could not read disc". I kept tring but said the same thing. I checked but i couldn't find anything about it. Can you help me please.

this is in the wrong section... but... is there any visible scratches on the disc? if there is a visible scratch you can take it into a music store etc.. and they can polish out the scratch for less then $20 :) hope this is helpful

clean the laser using a lazer disc cleaner not only does the disck get dirty but the lazer too when its too dirty it wont read the disc -- disc error
heres a piture of one you get them from electronics shops

Will it read the discs? If not it might be your laser is either dirty or going out.

Inspect and clean your disc Take a close look at the bottom side of your game, movie, or music disc (the side without a label or image). Are there scratches? Excessive scratches or smudges can prevent your console from reading the disc. Clean your disc Hold the disc by the edges without touching the top or bottom surfaces. Using a soft, clean, slightly damp cloth, lightly wipe from the center of the disc outward.

Note Use ONLY water to clean the disc.

Once the disc is clean, load the disc into your console and see if the disc plays.

Have you tried inserting other game discs? like 3 types of disc. If your Wii console plays those discs and don't play with the game disc that you wanted to play, then the format of that disc is not recognized by console. Some disc formats are sometimes incompatible with the player console.

Are you under warranty? Eventually your drive is going to fail. This is usually the first sign assuming your disc is fine.

I turned mine upside down pressed play and it started working.
Turned it back over and it's working fine.

If you have game cube games you may want to try them as well. If it plays the game cube games but not the wii games it sounds like the sensor inside is bad and you will need to contact nintendo so they can fix the sensor.

moisten a microfiber cloth with isopropranol alcohol and clean the lens and black rubber ring on the top surface of drive motor
and also clean the surface the disc you are tring to play then retry dvd.

you can clean lens with canned air also

i had the same problem, was playing assassins creed and was 15 min into the game when i heard the burrrrrr sound like some vibrations, but the game kept playing and i turned it off right away. didnt start up the box until christmas day i got guitar hero, tried to start it up in front of family and got the same results as you did opening and closing and not able to read any disk. found out that warrenty was out got desparate and even thought of a switch a roo with a refundable new one.
anyways found the problem! theres a magnet that sits on the disk spinner that came off and was not able to grasp game right. just found out now and glued it back in place and now waiting for it to dry, yeah i was like hell yeah problem solved. the tricky part is taking it apart, go to ; http://www.llamma.com/xbox/Repairs/repairs.htm

click on xbox repairs, then disassemble tutorail. didnt use the tool they told me to use well any ways good luck.