I searched like mad and got no satisfactory easy to understand answers on this subject. Apparently it was everywhere but heck if I saw anything relevant so here goes: Formatted a g-tech mini external drive using disk utility (was done correctly) After format disk Utility reads at the bottom: 14 folders, 88 files, 448.4MB used So what may that be? It was used as a time machine backup and also backing up other files, and I need a larger external and wanted to sell this one. Thanks in advance if I dont get a chance to thank the person for their time. It's appreciated.