Hello all. The Ipad is my study partner and, as such, I have a large number of PDF files and video tutorials on it. Last night I went through the process of adding some more (video tuts). Out of three different sets, only two of them played as properly as they should have (meaning with video AND audio). One of the sets will not play its audio portion. Ironically, that is the set which was most important to me. Let me note, here, that this very set WILL play - in complete fashion - on my computer, but will drop the audio, for some strange reason, after having been imported (via ITunes) into my Ipad (1st Gen). I have traveled through the process of deleting said file set from my IPad, and re-importing the files a couple of times. But it is always the same situation with that set. Has anyone ever experienced anything like this?