Police spokeswoman Senior Superintendent Kebaakae Metsi told The Times yesterday that the man "played this CD, where it starts saying: 'Nkosi Sikelela' and then 'Mandela is a k*****'."
Metsi said many people present at the competition heard the lyrics and complained to a manager at the resort, who made a complaint at the resort's police station.
The potjiekos competition, held on Saturday morning, was part of a quarterly family fun day for employees of the resort.
Sun International said: "Some inappropriate music with demeaning and insulting content was played by one of the service providers. In line with the resort's approach, this was stopped and management laid a complaint with the police."
Metsi said the 46-year-old man, who will face charges of crimen injuria when he appears in the Mogwase Magistrate's Court tomorrow, is a majority shareholder of Falcon Security, which provides security services at the resort. He cannot be named as he has not pleaded."Someone is trying to make a racist thing out of this," Nortje said. "We were only playing Afrikaans music. He was just sitting there, talking to no one. And then they arrested him.