I have n73, equipped with 1gb mini sd. all of my images, videos and sounds are saved in mini sd. I have a free 864mb space on my mmc and on my phone memory i got a very low 173kb free memory. It is said there that 47mb are in use. where?! here's the breakdown, 10kb calendar, 78kb contacts, 25kb messages, 0b images, 0b sound files, 0b video clips, 180b documents and 0b applications.. i may not be good in math subject but there's no way these small amount of data's will reach the size of 47mb.