I guess all you guys missed my thread on this one. Call Charles at Cryogenics International in Scottsdale, AZ. Website:www.Cryogenicsinternational.com. When I have been in his shop I have noticed some well know merchandise being treated for the manufacturer, but I swore I wouldn't say who I saw. It is a confidentiality agreement thing. I did all my CDs and DVD's and the sound is so much smoother, quieter and 3 dimensional. I can't explain the process as well as his article about this on his website, but go there and check it out. Here is the tip: Get some of those plastic containers that store blank CD's and load a 100 CD's into each of those things. It will save you hundreds of dollars in weight. I can't verify Charle's price now, but when I did this 6 months ago, it was $9/lb with some price breaks at certain weights. Get your friends to do it to so there's more weight to lower the price. He will ship it back to you. He doesn't even have to take them out of the box or container to put them through the process. It is by far the best tweak I have ever tried (and reasonably priced) and I think before getting new equipment, this should be the first thing one should do. My only caution with cryogenics is be careful if you do your cabling. Ask your manufacturer if anything can be ruined. I ruined my Sonoran cabling putting it through the process. I highly recommend treating your tubes. It will make them last longer, make them sonically quieter and burn brighter. Try it and post your experience.