ディスクユーティリティ:
ディスクイメージ(.dmg)を検証: This option allows you to enable or disable the verification when you mount Disk Images.
他のディスクイメージ形式を追加: This option allows you to add supplementary formats if you wish to convert a disk image or create a disk image from a folder. This function won't allow you to create a new empty disk image.
デバッグメニューを表示: Check this case if you want display a Debug menu in the Disk Utility menu bar.
ディスク作成後に検証: This option allows you to enable or disable Verification after burning a disk.