Thanks. I wasn't familiar with BitPerfect, and am reading about it now. I like using Audirvana (the original, not the Studio), but there are lots and lots of bugs in it. It occasionally is very frustrating to use, particularly since it keeps stopping whenever my a/c turns on and the...

I hate it when people point out my logical inconsistencies. You're right: WAVE files should sound fine regardless of platform, since they are bit-perfect. But, iTunes doesn't enable any upsampling, as does Audirvana, and I've discovered that I like that subtle difference.

I have an Eitr between my computer music storage (USB) and my Benchmark DAC (S/PDIF), and then to my preamp and amp and loudspeakers. I've been using Audirvana as the music software. The problem is Audirvana suddenly stops working for no apparent reason after ten minutes or so. I select...