On its first day of availability this week, the hit Disney Channel Original Movie “High School Musical” sold more than 400,000 DVD units in North America, according to Buena Vista Home Entertainment, a division of Burbank-based Walt Disney Co.

The highest-rated original programming in the history of Disney Channel, “High School Musical” has become the fastest selling television program on DVD for the home entertainment industry this year and the industry’s fastest selling television movie of all time on DVD, according to Bob Chapek, president of Buena Vista.

“With the triple-platinum selling soundtrack at the top of the charts and the television program the highest rated in the history of Disney Channel, we are delighted that this release has set a new benchmark within our strong lineup of television properties,” said Chapek in a statement.