OS X 10.5.6. I've got an AES-256 encrypted .sparsebundle file, with a maximum capacity of 30GB. According to the Finder, it takes up 29GB of space. There's only 17GB of files on it, though. I recently erased 12GB of data from the disk image. Trash is empty. There are no hidden files on the disk taking up the room. What can I do to get the space back?