Hello, I watched the background section of the new tutorial 401 Mastering. I think it's good that this tutorial covers the history and background of mixing sound in music. However when we start talking about CDs it seems that we are saying everything is better. It's a lot cleaner than records were but we lost a lot of the richness of the sound that exsisted with records. CDs don't give us what we used to have with records. However there are less problems with CDs and it's more consistant and easier to work with music using CDs