Msi dvd+- burner can copy &play dvd's on pc but not on stand alone player

can any one help i have just brought the msi dvd± burner (dr4-a)
i can copy dvd movies onto blank dvd disc which play great on pc’s but not on stand alone dvd player’s.

can anyone tell me what i’m doing wrong and how to fix the problem…thanks for any help :slight_smile: