Problems deleting files from Sony A77

FYI, no files are ever deleted on any Mac when moving them into the TRASH. The trash is just a specialized folder much like any other folder on the computer. Files are actually 'deleted' when you empty the trash. So naturally you need to empty the trash before you disconnect the camera or the file pointers will be all messed up. (Ever notice the 'Put Back" option, right click on file name, actually just changes the file pointer back to the original location. Just though I would pass this along...perhaps you already knew this.