Audio Systems: audio error, chev blazer, canned air

Question
I have a 2002 chev. blazer with an am/fm cassettetape and cd player. the cd player worked for the first few days but now it says check cd. even with brand new ones. i tried
cleaning with canned air and even the disk lens cleaner. it continuisly ejects even though nothing is in it.can you help me please?

Answer
sorry but the radio needs to be service this is a problem that happend to that radio all the time  
it takes the cd and spins it for a few seconds and ejects
the problem is that the laser is death or off and it believes tthe cd you insert is damage defective or wrong because  it can not read the cd information

sorry i can not help you more