You will need a version of Magix that can use Direct X 12 to run on Win 10 or revert to an earlier operating system. Unfortunately under Windows 10 you don't get the choice of not updating the operating system any more so older programs and peripherals will eventually become redundant as Windows progresses through it's update cycles.
Next time please start your own topic and add the information required for all forum posts.
. . . . Standard DVD NTSC is what comes up automatically in the burn dialog. What should I be using . . . .
That depends on which TV standard is in use in your location, generally if in Europe then PAL if Canada, US then NTSC.
I assume when you say they paly in black and white you are referring to when playing the disc in a DVD or BD player to TV is this correct? If so how is the player connected to the TV - SCART connector or HDMI?