If you want to improve your CD player then you really can't look pass those Burson DIY kits. I have used them in my CDP upgrade only two weeks ago and they basically removed the digital sound from my CD player and make it sound LP like and live like.
Here's their blog that gives all sorts of upgrade tips for CDPs.
http://bursonaudioblog.blogspot.com/search/label/DIY%20Audio%20%28Tips%20and%20Tweaks%29
Here's their blog that gives all sorts of upgrade tips for CDPs.
http://bursonaudioblog.blogspot.com/search/label/DIY%20Audio%20%28Tips%20and%20Tweaks%29