In order to back them up, Time Machine has to copy the disk image file. If you make any change to the contents of a disk image, the entire file winds up copied to Time Machine.

Deleting a corrupt file on SanDisk removable media can be done in a couple of different ways – the first is to simply delete the file, while the second involves reformatting the entire card.

If you've ever used a large file discovery tool like Daisy Disk, you may have stumbled upon a peculiarly large filed dubbed sleepimage.