How to use

I've down load the TMPGEnc DVD Author 3 with DivX Authoring 3 the newest version from www.163.com and it's a green software!null

I tried to use it and I found that it prompt me that "there's no usable writing drive installed"' once I click "launch the disc writing tool" bar. I've no idea what happened.

Is anybody know what did I missing? What's your suggestion?