I'm glad this thread has been opened, I've been thinking about trying JPlay for a couple of months, this thread put it front and center. Just loaded the trial version tonight and its a very nice improvement. I have a cheap dac (Musiland Monitor 02US, asyncronus usb, plays all files 16/44.1 to 24/192 through usb)and I have no idea what a $3000 + dac sounds like, but I have tweeked my pc laptop in everyway that I can think of. This made more improvement than anything that I have done. Previously I had 3gb ram, I increased it to 6, Loaded wasapi, nice improvement, removed virus protection, turned off all unnecessary programs, loaded about 6 different drivers for my dac, JPlay made as much improvement as all the other things combined. I'll probably follow the Euro vs the dollar for a bit, but I can't imagine not pulling the trigger and purchasing this program.