The present invention provides a basting device comprising an elongate body portion defining a first passageway therethrough and having a distal and a proximal end and a resilient and flexible squeeze bulb having a collar portion located therein for removable attachment to the distal end of the body portion. Since the data storage apparatus either certifies the designated region of the recording medium or verifies the data written in the designated region, the data storage apparatus can enhance the reliability of the data written in the recording medium, but the data storage apparatus does not waste time by verifying the designated region of the recording medium two times or more. The second side is opposite to the first side. The transmission control means generates operation information including a function code corresponding to the operation switch and a count value corresponding to the number of operations of the operation switch. A t-test based on the baseline mean and variance and the operating mean and variance can be used to determine if this difference is significant. The set of color filters includes a pair of first color filters, each having first and second hard mask layers formed thereon, a second color filter having the first hard mask layer formed thereon, and a third color filter having no hard mask layer formed thereon.