Tim I think you just downloaded the sample video - I was just sent a sample course and it has the RXVP file which contains all meta-data.Right - so my point being, although I just looked at the sample download they had -
1) It was just a garden variety mp4 'Car Cam' + overlay.
2) It had some subtitling
3) There was no extended meta-data ,either in track or out of track
4) So, yes, I could drop it into any 'smart trainer' and it would happily crank out a xx hr session whilst I watched the somewhat synched screen
5) However - either the trainer app itself or the video must contain the meta-data in order to provide the feedback (alerts, power changes, etc).
As far as I could tell - the video did not contain this information.
BTW - the Elite trainers are still not available in Japan with no plans (yet announced) for them to gain Japanese certification. That leaves just the PowerTap Pro, Minoura and CT as the only domestically approved (and supported) units.
Obviously this is a growing market and it won't be long for every fixed trainer to offer some kind of feedback mechanism. I hope that there is a standard of some sorts, which would make life much easier for the developers (and riders).
for the record Elite trainers are available in Japan - only the Ant and wireless versions aren't. Elite has support in Japan and is through the distributor Dinosaur (I think) As for Powertap - support if you want to pay double what you would in the US for any servicing or repair