Singer-songwriter Lam Man-chung, known for his Canto-pop hits in the 1980s, has been sued for copyright infringement after he allegedly uploaded video clips of his own concerts on YouTube. In a writ filed in the High Court on Tuesday, Honger Music Venture, a production company that provides concert management services, said it owned the copyright for the production of the concerts, 'Lam Man Chung: Good Friend Concert 2009', held at the Hitec event venue in Kowloon Bay on September 25 and 26. The company alleged that Lam, also known as Andrew Lam, borrowed the master DVD-ROM copies of the concerts after the show and uploaded them to the internet. According to the writ, Lam was paid HK$760,000 for the two performances. Lam is famed for writing Canto-pop hits in the '80s. The writ alleged that Lam requested an 'immediate review' of his performance on the first day, and promised to return the borrowed DVD-ROM as soon as possible. He made the same request for the second show. Lam returned video recordings to the company on September 30, but the company said the DVD-ROMs he returned were duplicates. It is seeking compensation from Lam for the losses it allegedly suffered because of the copyright infringement; an injunction to prevent him from further infringing its copyright; and a court order for the removal of the concert videos on YouTube. It also demands that Lam return all video recordings of the concerts.