The nice thing about fMP4 is that it's supported by both HLS and MPEG-DASH, so you can save yourself the effort of duplicating all data at the CDN level (or usi

The nice thing about fMP4 is that it's supported by both HLS and MPEG-DASH, so you can save yourself the effort of duplicating all data at the CDN level (or using a CDN that can just-in-time assemble fMP4 and M2TS files from the same underlying source).