just wanted to bring up the question if it is possible to play a file outside of the media folder.
The file would not be checked in the database by media-scanner but technically the playback should work.
Yes it's possible. You use <media-path/> element in the casparcg.config to determine where to play your media files from.
Yes it is possible to play from anywhere. Command is like below
Play 1-1 "D://my folder/my file.mp4"
I have made a client for this.

Download from here.
https://casparcgforum.org/t/simple-video-playout/61
Thanks vimlesh
I used the wrong slashes... It works now
Most helpful comment
Thanks vimlesh
I used the wrong slashes... It works now