[nature boy]

I also use the Jena Labs 3D-X.  There is a noticable positive difference in playback of CD's and DVD's IMHO.

The only issue with this is the liquid will get "gunked up" in the dispenser bottle tip w/ the cap on after about 30 days or so.  You have to clean it out regularly. Also, it is a bit time consuming as you apply the liquid, let it dry for 30 seconds to a haze, then wipe it off.

I do not use a large microfiber cloth instead of the supplied wiper pads. This just makes the application process easier and faster. 

I have treated about 800 CD's and DVD's and only used about 1/3 of the 4 oz. bottle content.  I expect you could treat about 2000-2400 discs for one 4 oz. bottle.

NB

[HiFiSoundGuy]

    I put some Crystal Clear from www.thecablepro.com on some of my CD's.....WOW! My CD's now sound more like LP's now!....  I'm using a SONY PLAYSTATION 1 for a CD player....this thing is a REAL SHOCKER! I heard about how good the Sony Playstation 1 was in this review....  www.6moons.com/audioreviews/leben2/system.html

[djbnh]

I also use the Jena Labs 3D-X.  There is a noticable positive difference in playback of CD's and DVD's IMHO.

Ditto re: Jena Labs Esoteric 3DX.

[emac]

The only issue with this is the liquid will get "gunked up" in the dispenser bottle tip w/ the cap on after about 30 days or so.  You have to clean it out regularly.

Yeah, that gunking up is a very annoying problem.