Tiger Disk Image Bug
Dave Nanian has found a bug in Tiger that can corrupt sparse disk images larger than 1 GB (via John Gruber). Since DropDMG does not create sparse images, it should be unaffected except if you ask it to convert a sparse disk image into an archive format (StuffIt, Tar, or Zip). Then, of course, it will try to mount the sparse image to access its contents, triggering the bug.
