Thank you everyone that responded to my question both on the mailing list and directly to me. The two primary benefits that most everyone mentioned were higher formats (sample rate and/or channels) and control notification (e.g. volume control change notification to host, removing the need to use HID control and rely on host support). I have some follow up questions. It seems most of the responses were in the context of pro or "prosumer" products. What other classes of product have strong need for this? Is lack of a built-in Windows driver for USB Audio 2.0 inhibiting development of products that would appear on the shelves of retail stores (e.g. desktop speaker systems for the average consumer)? What is the typical business model for getting Windows drivers developed for USB Audio 2.0 products that exist today? And why is that model not sufficient to allow USB Audio 2.0 to thrive? On your list of gripes or wishes regarding the Windows Vista and Windows 7 audio system, where does this lie? Near the top? Middle? Bottom? I encourage open responses to the list but feel free to respond directly to me if you would rather. And as always, thanks very much for your feedback. Frank Yerrace Microsoft This posting is provided "AS IS" with no warranties, and confers no rights. From: wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Frank Yerrace Sent: Tuesday, October 20, 2009 6:24 PM To: wdmaudiodev@xxxxxxxxxxxxx Subject: [wdmaudiodev] Why would you want USB Audio 2.0 in Windows? There are occasional questions on this list about USB Audio 2.0 support in Windows. We (the Windows sound team) are curious to hear specific reasons- scenarios, business, features, etc.- that would be enabled if USB Audio 2.0 support was included in Windows. Are any of you willing to share this? The more specific you can be, the better. If you do not want to share with the entire list then feel free to send a message to me directly. Frank Yerrace Microsoft This posting is provided "AS IS" with no warranties, and confers no rights.