So, I started the game, and the file size was 512 KB, and it took me like 20 seconds to save a file, after I played the game, the file got bigger (I know it's supposed to happen), but now after beating just the first gym, the .dsv file is 8 MB.
Size of .dsv file at the moment:
Size: 8,388,730 bytes
Size on Disk: 8,392,704 bytes
Is such a large increase in size normal when playing Pokemon White on DeSmuMe?