All I can tell you Ray is that I cannot do what I do without an external audio interface. If you can find a way to make a PC handle the latency in a multitrack recording, as well as the Analog-to-Digital conversion, all while while playing back 32 freshly recorded tracks, each with VST plug-ins simultaneously taxing the operating system...then please save me some money and show me how! laugh

Here's another explanation: Why Do I Need An Audio Interface Designed For Home Recording?