ISO IEC 29121-2013 pdf Information technology — Digitally recorded media for information interchange and storage — Data migration method for DVD-R, DVD-RW, DVD-RAM, +R, and +RW disks

4.2 Test Drive The test drive shall comply with ISO/IEC 16448 for DVD-R, DVD-RW, +R, and +R disks and ISO/IEC 17592 for DVD-RAM disks. It shall have the capability to measure PI SUM 8 max for DVD-R, DVD-RW, +R, and +RW disks and BER max for a DVD-RAM disk, respectively. 4.2.1 Test drive calibration The test drive shall be calibrated by using a calibration disk prepared by the test drive manufacturer based on the calibration procedure defined by the manufacturer. The calibration shall be done at the intervals recommended by the manufacturer. 4.2.2 Test preparation Prior to conducting tests, the disks shall be visually examined to determine whether they contain dust, finger prints, or other contaminants. If appropriate, such contaminants shall be removed in accordance with the disk-manufacturer’s recommendations. Certain options are contained in Annex A. Microscopic examination may reveal physical deterioration, such as delamination and porosity of the protective coating. 4.2.3 Test execution Before testing disks, the test drive shall be verified by checking the calibration disk supplied with the test drive or publicly verified. If the drive passes the calibration check, the disk to be checked shall be tested by the test drive. Test results shall be judged by the PI SUM 8 max for DVD-R, DVD-RW, +R, and +RW disks or the BER max for a DVD-RAM disk. 4.3 Test area The entire recorded area of all the disks should be tested in order to confirm the readability of the data (see Annex G). 5 Test result evaluation 5.1 Initial performance test result evaluation When data is recorded on disks, the initial recording performance on the whole recorded area shall be checked. The initial recording performance is categorized as Level 1, 2 and 3 by PI SUM 8 max for DVD-R, DVD-RW, +R, and +RW disks and BER max for DVD-RAM as shown in Table 1 (see Annex C). At least, the initial recording performance shall be within Level 1.