I have a sparse disk image and inside of it I deleted a folder with 7 gig in it. I emptied the trash. However the used size did not change! It was 22 gig before and now after deletion it's still 22 gig. If I add up the file sizes in my head it's 15 gig used as expected but Finder etc. still claims 22 gig is used as if my 7 gig not delete! Any ideas?