I found out. because if i do current space (applications + others) = 31.93 +25GB free space it's 56.93 which is close to 57 which the figure it says when i first open content manager. So i opened content manager on my old 64 GB and it says 60 GB!!! so why does my other vita has like 3GB more max GB then my other one?? which is BRand new!!! im really annoyed now.