May is going to be a big HD-DVD month for Universal.

According to The Digital Bits, the studio recently announed two more waves of DVD titles for the month.

On May 9th, they will be releasing Assault on Precinct 13, Cinderella Man and Jarhead.

Then on May 23rd, the studio will release The Bourne Supremacy, The Chronicles of Riddick: Unrated Diector's Cut, U-571 and Van Helsing.

All of the movies will be "'HD-30' (single-sided) format discs, and will include English, French and Spanish audio in English Dolby Digital Plus 5.1 Surround, with English SDH and French and Spanish subtitles."

Assault on Precinct 13 was released January 19th, 2005 and stars Ethan Hawke, Laurence Fishburne, Gabriel Byrne, Maria Bello, Drea de Matteo, John Leguizamo, Brian Dennehy, Ja Rule. The film is directed by Jean-François Richet.

Cinderella Man was released June 3rd, 2005 and stars Russell Crowe, Renée Zellweger, Paul Giamatti, Craig Bierko, Paddy Considine, Bruce McGill, David Huband, Connor Price. The film is directed by Ron Howard.

Jarhead was released November 4th, 2005 and stars Jake Gyllenhaal, Scott MacDonald, Peter Sarsgaard, Jamie Foxx, Lo Ming, Lucas Black, Kevin Foster, Brian Geraghty. The film is directed by Sam Mendes.