Cd burner can not read burned cds!

I have a samgsung SW-248F drive updated to the latest firmware revision. This has not been a problem before. Im starting to notice that some cd’s I burn cannot be read by my burner. I can put the cd in the dvd drive and it reads it no problem. So nothing is wrong with the cd’s my burner just isnt seeing them correctly. Can anyone give me any advice as what I can do about this. Thanks in advance.
Bob