Gamecube

items-q tip, alchohal
take the q tip and dip it in the alcahol, then very gently tap the wet side of the q tip on the laser lens. then dry it off for a little bit. it worked for me

Just found this thread, **Never ever clean the lens with alcohol!** ever. most optical drive lenses are made of Polycarbonate these days and cleaning it with isopropyl alcohol will cause it to yellow and even crack. Use an *alcohol free* CD wipe wrapped around a Q-tip or use *alcohol free* lens cleaning fluid available from any opticians.
If cleaning the lens *and disks* is no help make sure your disks are the same region as your cube, if they are then you are looking at a physical hardware problem.
This can be as simple as a cable that's been jarred loose or as major as a dead drive/drive controller so where you go from here is down to whether you are confident enough to take you're cube apart or not?
If you are re-post this to the premium forum, if not you need to check and see if your cube is still in warranty or not, it's not likely to be but this will depend where you are in the world, when you bought it and where you bought it from.
Alternatively this may be a good excuse to buy a Nintendo Wii as the Wii will happily play your cube games and support your cube controllers/GBA connect cables/cube memory cards. The only Gamecube device the Wii will not support is the Gameboy player.

lic a dic

Open lid and clean eye with alcohol and let dry and try again

Clean eye with alcahol very gently or it could cause a crack in the lens then leave to dry for 10-15 mins then check if dry and try again hope this helps. :)

open the lid and clean the lens with a qutip dipped in a bit of alcohol, be very gentle because you can crack it Then let dry, if the problem still persist then you will have to adjust the lens.