thanks guys
firstly the dvd’s are DVD – R. probably more than 5 years old.
the oldest home movies we have were always WMV (?)
the newest are a mixture of mp4 and m2ts (dont know why the difference)
i also have another couple that are avi but i’m not sure if i converted them previously to view on the old tv headrest screens.
i honestly thought the burner program converted them as well as burning