Hi, all, 1. I hate construction, tearing down walls, etc.. I want to make my walls to where they help make the sound better. Is there a material that can simply be "stuck" to the wall, like with self adhesive that will help? 2. What is a great sample music cd or dvd that I can use to show off my home theater sound? (Yes, I know if the ht is junk, the sample disc won't sound that great). I have an 4-year old JVC 5.1 receiver with DD and DTS. To me it sounds great. Thank you!