If you didn't download it from download.com, why would you write a review there? But if you did, there's a "Write review" button on the product page.
I really want to use the MP4 player for free because it is very useful. The MP4 player site asked me to write down some reviews about the advantage of the software on the Download.com. But I have no idea how to do it and let it knows I love it. Please give me some advice and I will be very appreciated if you can tell me. Thank you.