Welcome to the forums :)
How do you plan to playback the video? In Quicktime or another application?
Do you have another Mac to playback the video or from the same Mac?
Is it one long video... or multiple videos and each on must sync per "song"?
Also, I might recommend you check out Arkaos which can easily launch video to an external display... In Mainstage you can send a MIDI out note (through the IAC Driver) to trigger the video playback in Arkaos.
Hello! Newb here. A worship leader in a church trying to run stems for the band and video for the people :-)
Which bit of Arkaos would do simple launches of a video per mainstage song?
This is in a church and the videos have backgrounds with the song words for the congregation to sing so they need to start and stay synched to the mainstage playbacks.
How do I get the machine running this Arkaos to talk to my Mainstage Mac on stage? A long midi cable? (wonder if I could run that over an audio snake - our sound booth is 100ft from the stage)
I'm not too familiar with Arkaos, so couldn't advise. A MIDI cable should work...
@ Yuri, did you manage to get the Mainstage2 to Arkaos sync working? Would be great to hear your impressions of it.