Several retailers are selling this unit online (and on ebay) with having a line in/mic in 1/8" jack???? Sony even states it has one. I am considering purchase, because I don't have a digital camera and want to upgrade from my MZ-NE410, but want to make sure I'm really getting everything that is promised. Does anyone know about this? Did another model come out or revision with the line in? Thanks for your help.