Update on CDEX: 1. I have been using CDEX_V150_BETA_7 for long and it did not have any trouble, though there are still bugs that need to be fixed. 2. There are a version of CDEx_v1.51, I do not remember where I download it, seems somehow to cause problem: no sound when you play divx with DivX Player 2.1. But with no problem when you play with other players like MicroDVD. So be aware.