zhoubo: You've posted this request for help in three different threads and you reposted this thread after 4 minutes. This is not instant messaging and it does show impatience.
You also posted your e-mail address which is not recommended as this will attract spam.
It would help if you told CDF members what you where trying to do (e.g. backup a commercial movie, burn a data disc, make a slideshow, make a disc which contains home movies, etc.)