131Menu Guide—The Set-up MenuProtecting Images from Deletion: Disable DeleteThe Disable Delete option is used to protect im-ages from accidental deletion. Select On to dis-able all operations or menu options that delete orerase images, including deletion with the but-ton, the Delete option in the playback menu, andthe CF Card Format option in the setup menu.When Off is selected, images can be deleted andmemory cards formatted normally.Choosing a USB Option: USBUse this option to select the USB option used whenyour camera is connected to a computer ( 34).Your camera supports two options: PTP (PictureTransfer Protocol) and Mass Storage.Protocol DescriptionPTPSelect this option when using PTP to transfer pic-tures to your computer. PTP is supported only un-der Windows XP Home Edition, Windows XP Pro-fessional, and Mac OS X (version 10.1.2 or later).Mass StorageIf this option is selected, the camera will functionas a mass storage device when connected to a com-puter. The Mass Storage option is supported un-der Windows XP Home Edition, Windows XP Pro-fessional, Windows 2000 Professional, WindowsMillennium Edition (Me), Windows 98 Second Edi-tion (SE), Mac OS X (version 10.1.2 or later), andMac OS 9.0, 9.1, 9.2.
