Originally Posted by BenMcr

Because it is your responsibility maybe? This is from Amazon's MP3 service - I would expect similar terms would apply to the VM service

Except as set forth in Section 2.1 above, you agree that you will not redistribute, transmit, assign, sell, broadcast, rent, share, lend, modify, adapt, edit, sub-license or otherwise transfer or use the Digital Content. You are not granted any synchronization, public performance, promotional use, commercial sale, resale, reproduction or distribution rights for the Digital Content. You acknowledge that the Digital Content embodies the intellectual property of a third party and is protected by law

So that basicially says by downloading the file in the first place you agree in full that you are responsible to what happens to it, even if you didn't know.