cd player code

Hi everyone,
Does anyone hear know what a err code is from cd player. Cd plays fine my truck `00 Silverado, but does not in `97 z24 .Same factory stereo with all the bells and whistles not the cheap model.....LOL I know this is probably stands for error but can anything be done to correct it .put a cd cleaner in it but no difference
Thanks Muff

burnt cd or not?...some burnt ones don't play in older model factory cd players, might have to chump out some change for a nice kenwood or a pioneer :)

oh that could very well be it, but was just thinking same stereo ,different year .maybe just some simple repair