Irvine-based Quartics, the developer of video processor systems-on-a-chip backed by Safi Qureshey, said Tuesday that it has linked with CyberLink, a developer of DVD playing software on a partnership. The two said that they are demonstrating a product which combines Quartics Qvu system-on-a-chip with CyberLink's PowerDVD player software, which will improve both standard and high definition video content. Qureshey is best known as the founder of CEO of early PC maker AST.