http://www.macnn.com/articles/03/12/16/decklink.4.1.updated/
Black Magic releases DeckLink 4.1 for its video cards
updated 07:35 am EST, Tue December 16, 2003
DeckLink 4.1 updated
Blackmagic Design today announced a new software update with new features for all DeckLink model uncompressed video cards. adds Video and Key output support to DeckLink Pro, allowing users to connect the two SDI outputs of DeckLink Pro into vision switchers for live keying of graphics over realtime video. Version 4.1 also includes Blackmagic LiveKey, which allows users to enable DeckLink key modes; it adds support for real world video speed tests with disk arrays with the new included Blackmagic Disk Speed Test application. It is a free update for all customers.
