Memory Issue

[madhold]

I am having a similar issue with a video (digital copy of the Mummy) that I dragged and dropped onto my 8 GB Sansa View.  It came back as unsupported media format so I used the View’s own menu to delete it off the player.  However, while I cannot see the movie or the file anywhere on the thing, the memory was not restored.  Please help!  Also, I do not know where to go to see this MTP/MSC thing…please point me in right direction.