Page 1 of Different Terminator problem

This is not DVD-rot or clouding - I have just received Terminator SE from Play (new stock I assume, as it was out of stock when I ordered) and I`ve noticed a couple of problems. In the opening scene (in the future) the movement of the `gunship` is quite jerky, and later when Arnie materialises (in the present) there is some quite bad streaking to the left of him. The picture is also quite grainy in parts. Do I have a bad disk or is it just a case a so-so transfer to DVD? Anyone else having these problems?

Thanks