I thought BrightSign fixed this?
I just had a project handed to me by a client, for a pair of 103" plasma displays in Portrait mode.
They gave me a portrait HD video all ready to go, but BrightAuthor tells me that the resolution is not supported (1080x1920).
So still I have to take the video, and rotate it back (to 1920x1080) and re-encode it, to get it to work in a player, and do everything sideways.
This really needs to be fixed properly, there is no excuse for this not working yet.
