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:
“Dark accurate plunger down the successive knell
Of arch on arch, where ogives burst a red
Reverberance of hail upon the dead
Thunder like an exploding crucible!”
—Allen Tate (1899–1979)
“I feel no more like a man now than I did in long skirts, unless it be that enjoying more freedom and cutting off the fetters is to be like a man. I suppose in that respect we are more mannish, for we know that in dress, as in all things else, we have been and are slaves, while man in dress and all things else is free.”
—Amelia Bloomer (1818–1894)
“The area [of toilet training] is one where a child really does possess the power to defy. Strong pressure leads to a powerful struggle. The issue then is not toilet training but who holds the reins—mother or child? And the child has most of the ammunition!”
—Dorothy Corkville Briggs (20th century)