For On Demand video streaming or TV station services, you will upload video files, which must be in MP4 format and with a slightly lower bitrate allowed on your package. When you order, you select the package you want, and one of the criteria is the bitrate.
If your bitrate is higher than allowed, then you won’t be able to save the video file to the playlist. There is free software to do that, or you can use an online converter. You can test it at: