Unless the principals have some nice, cheap silicon in their back pockets, AV1 likely won't go anywhere. AVC/H.264 prevailed over VC-1 in part due to reference hardware decoder designs, and HEVC/H.265 already has dedicated decoder chipsets that can fit in the next iteration of smartphones and STBs easily, freeing up GPUs for whiz-bang interface or more critical number-crunching work.

Any word on how this might affect / conflict with Overbridge multi-channel audio signal and production / presentation metadata over USB?

"Several little birdies" have told John Gruber of daringfireball.net that Ziegler is not in the current Apple company directory. Ziegler's Twitter account has been silent for six weeks or so.

in use at my job in 2012 still used 8-inch floppy disk media. When we did a DVD of the 1970s version of Charlotte's Web in 2004, the lab where the original 1 inch Type C videotape was stored also sent us the EIA-608 information on one of those 8-inch floppies.

Sometimes explicit tutorials are nice. Take the one in Steamshovel Harry. http://www.e4.com/game/steamshovel-harry/play.e4