That sounds unlikely to work. I had a professor at the university who started his lecture on ECC by saying he always drilled a hole in all his CDs since he knew

That sounds unlikely to work. I had a professor at the university who started his lecture on ECC by saying he always drilled a hole in all his CDs since he knew it would work anyway. Or perhaps the ECC simply works well enough that there's no perceptible data loss for audio?