External HD Changing the quality of the sound?

Thanks for the heads up, Steve. For better or worse, the Seagate external HD is USB powered. I am fumbling my way through these early stages and it's an accomplishment that I can actually copy a cd and play it back from the HD. Haven't yet done any critical listening comparing CDP to computer with or without BitPerfect running. Hope to give that a try this evening.

Ah, Ghosthouse. I get what you mean. BitPerfect just needs to know where iTunes keeps the music files the first time it loads up. The main options are just listed in the drop down menu.

If your DAC displays the sample rate, there is one way to check if it is running, Play some music files in 44.1 and in 96kHz. Without BP enabled, iTunes would resample everything to whatever you set in AudioMIDI setup for the audio device.

So if it is set to 96kHz, even yr 44.1kHz music would be resampled. With BitPerfect set to native mode, it would switch between different sample rates depending on which file you are playing.

If you intend to play hirez files, a higher connection speed is important for hardware protocols. In that case use the fastest hardware connection available (esata, firewire, etc). If you are using a network connection, speed is again important, hardwire Ethernet is faster than wireless.

Thanks DH - The V-DAC is pretty barebones...no display of sample rate, no display at all. I can try some other things messing with sample rate in MIDI to see what BitPerfect does, as you suggest. Davide - (if that was for me) no hires files yet.