Hi all, I am trying to find out why, when I put PNG files on my iPod Touch, my available storage space decreases significantly. For example, I have about 30 MB of photos in PNG format (about 2000 photos all told) but instead of decreasing my storage by 30 MB, it decreases by 1 GB. What gives here? Any help would be greatly appreciated, as I don't want to waste space. Thank you in advance.