Burst Cutting Area
Each Nintendo optical disc contains a burst cutting area (BCA) mark, a type of barcode that is written to the disc with a YAG laser. The data stored in this BCA mark includes an encrypted table related to the hardware-based copy-protection mechanics, in addition to 64 bytes of un-encrypted user-accessible data.
A BCA mark is visible to the naked eye. It should not be confused with the IFPI mark that is on all optical discs. BCA is described in Annex K of the physical specification, and can be seen between radius 22.3±0.4 mm and 23.5±0.5 mm. There are also six additional evenly spaced small cuts just outside the BCA radius, which are related to the copy-protection used. These small cuts can clearly be seen if the disk is held in front of a strong light source.
Read more about this topic: Nintendo Optical Disc
Famous quotes containing the words burst, cutting and/or area:
“No burst of nuclear phenomenon
That put an end to what was going on
Could make much difference to the dead and gone.”
—Robert Frost (1874–1963)
“For universal love is as special an aspect as carnal love or any of the other kinds: all forms of mental and spiritual activity must be practiced and encouraged equally if the whole affair is to prosper. There is no cutting corners where the life of the soul is concerned....”
—John Ashbery (b. 1927)
“Prestige is the shadow of money and power. Where these are, there it is. Like the national market for soap or automobiles and the enlarged arena of federal power, the national cash-in area for prestige has grown, slowly being consolidated into a truly national system.”
—C. Wright Mills (1916–1962)