Hopefully. I believe they didn't want to vary to MPEG4 concurrently as shifting to S2 in the event of any difficulties. one I suspect which was additional to do with the reality ITV's 'Invisidot' program (an Axon aka EVS products) gets stripped off by some codecs useful for distribution and https://hectorwtkrq.blogoscience.com/40224505/what-does-jav-mean