Pictures and Videos "export"

When I connect my phone as a mass storage device and copy or cut all the pictures/videos to my computer (Windows 7 or XP) the pictures DO NOT open giving a format error and the videos DO NOT play either. If I email those same pictures and videos from the phone itself, they open fine on these same computers. Any ideas on how to fix this compression issue? PS the pictures and videos show and play fine on the phone itself.

I did notice that the picture that copies out as 1 MB, emails out as 2 MB from the phone. Does not matter if the picture or video was stored on the phone of the SD card in the phone.

PS I do have an exchange account set on the phone which requires things to be excrupted, the same reason why I can not take videos higher than 720p and 6 MP pictures.