Fair enough, but why can the 4k run at 24? Honest question; I'm far from an engineer.About the 24p, might turn out to be a basic math issue (not solvable with a firmware). Normally things work at 60hz in north america. If you want to playback at 24p, you basically need to run at 240hz (60hz as basic frequency x 4 cycles per seconds); then you output the same frame 10times in a row, so you get 24 frame / sec. Maybe the R cannot run at 240 so cannot produce 24p?