Working great here...

Absolutely seamless playback here - Bitperfect on my digital audio workstation brings simple iTunes up to the sound quality of other sophisticated sound/music applications.

Sound quality improvements: The sound is clearly deeper - there is more fine detail epecially within the quieter elements of the signals. This gives the sonic illusion of more space - a wider sound stage - one of the hallmarks of recording fidelity. For the price, this is a great improvement!

My equipment: Im using iTunes 11 on a mac pro (24 Gig RAM) running mountain lion (10.8.2). My DAC is good but not leading edge. It is built into an Edirol MIDI USB interface, which sends a clean balanced signal to Mackie balanced monitors and headphones. Integer mode is N/A. I run the DAC at 44.1kHz/24 bits to leave USB bandwidth for MIDI I/O and monitoring.

Source files: anywhere from old MP3s up to huge 96kHz/24 bit HD tracks. They all sound better to varying degrees.

Suggestions: 1) add a link to BitPerfect support in the menu; 2) maybe add a handy interface to AudioUnit plug-ins and rate their inherent quality/destructiveness? (examples - a crossover for multi-amping or mix/delay/filter functions for more complex distribution systems)

Bottom line: There is no more convenient and flexible music interface for daily use than iTunes so it is a shame that Apple doesnt give users the options to accomplish what BitPerfect does. But for a small fee, BitPerfect corrects Apples oversight.

francolargo about BitPerfect