First to introduce and implement a Dual Link monitoring solution for the production/acquisition and post production markets, Leader has been providing Dual Link solutions to the emerging HDTV based feature film production since 2003. Our most recent introduction, our OP77 Dual Link option, is a new SDI input module that adds compliance to HD-SDI Dual Link formats as per SMPTE 372M. OP77 provides separate, dedicated A and B inputs (with reclocked outputs) for Dual Link monitoring on the LV 5700A; leaving the standard built-in HD-SDI inputs available for traditional SDI monitoring. Waveform, vector and status/data dump screens are available for Dual Link monitoring and they represent a combination of BOTH links; all of the facilities of the LV 5700A can be used to monitor Dual Link systems. A picture display as well as embedded audio monitoring is also provided (Link A only).