Version 5.1 introduced changes to project conformance settings to improve how Premiere Pro handles diverse media types within a single timeline. Demo Mode Limitations:
Specialized support for high-end Panasonic workflows. Benefits for Post-Production Version 5
The stock Adobe H.264 encoder was efficient, but the MainConcept version provided: or ATSC broadcast
For users outputting to satellite uplinks, cable headends, or ATSC broadcast, the MainConcept plug-in offered generation and SMPTE 302M (uncompressed audio over MPEG). Version 5