Portugal's pay-TV operator and content provider Zon Multimedia has selected video processing technology provider Envivio software-based headend systems to power a set of DVB-S and DVB-C transport streams to provide pay TV services as well as mobile TV services. The Envivio systems were provided through its official Portuguese representative, Satcab, a system operator and distributor of professional broadband and broadcast equipment in Portugal. Envivio Muse encoders on the Envivio 4CasterG4 Intel-based appliance, with Envivio Spark receivers and multiplexers, deliver video in variable bitrate (VBR) format for cable and satellite broadcast TV channels. Simultaneously, the Muse encoders are producing constant bitrate (CBR) video for non-linear TV service delivery, as well as adaptive bit-rate (ABR) services for multi-screen. The headend infrastructure is managed and controlled using Envivio's network management system.