How Can I Buy A Dead Space 3 And Play Online

Hi

I Have Problem Here

I Have Fake Dead Space 3 Just For Test

And Now I Want To Buy Dead Space 3 (The original)

But I Don't know how Can I Buy It

Our Internet Is Very Slow< It's 512 KB

So I should Buy It In DVD-CD But I Don't know

                                                                How the image looks?
                                                                Is it original?
Note I'am I in Yemen
A country where nothing
What I can do?

I Want 3 Things 1-I Want To See The Image Of the DVD-CD Game

                              2-How Can I Know It Is it original And It's Not FAKE

                             3-HELP ME