111Playback/Editing > Searching and managing filesProtecting filesProtect your files from accidental deletion.1 In Playback mode, press [m] ĺ z ĺ Protect ĺ Select.2 Press [C/F] to select a file, and then press [o].3 Press [f].You cannot delete or rotate a protected file.Lock/Unlock all filesLock or unlock all files.1 In Playback mode, press [m] ĺ z ĺ Protect ĺ All.2 Select an option.Option DescriptionLock Lock all files.Unlock Unlock all files.Cancel Return to the previous menu.