DVD burned but wont play

[J.G]

I have burned a video  to a DVD - R  disc on my PC and it plays back on my PC but will not play on any other player. Other players show a screen with "INTERVIEW  .MP4" and two screens one says "01.\" the other "01 . INTERVIEW" with a red triangle.

When I try to play I get the message "UNSUPPORTED FORMAT" 

Please help, I am tearing my hair out over this,

Thanks