Eh? There's no "error correction" on any type of CD, be it a ROM or an audio disk. Error correction is performed in the player when reading back the data, which is just encoded symbolic groupings. On audio players, there isn't much need for a huge amount of correction since dropping a few symbols will just mean the audio stream is interrupted. What the player does when this happens depends on the strategy: audio mute or just let it through ("click").

On ROMs, there is additional data in the form of data structures (directories, file data, etc.) and (for example) sector and record checksums to improve the drive's ability to correct errors read off the disk - this is probably what you mean.

Re-read the post and I see you are not saying this, as I have posted in response to the wrong poster! Sheesh what a plonker.