Windows 8/8.1 Compatibility for Grass Valley ADVC, EDIUS and Related Products Application Note (GVB-1-0208A-EN-AN) File size: 611.0 KB, posted Mar 13 2015 Grass Valley, a Belden Brand, has been testing and qualifying products with Windows 8/8.1 and is continuing to do so. This document is a status update of this testing. Future dates and schedules mentioned in this document are subject to change without notice.