In computing, the burst cutting area (BCA) or narrow burst cutting area (NBCA) is the circular area near the center of a DVD, HD DVD or Blu-ray Disc, where a barcode can be written for additional information such as ID codes, manufacturing information, and serial numbers.
It is not mandatory for DVD players to support reading the BCA, but DVD-ROM drives should, according to the Mt.
Fuji specification (an industry-standard optical drive command set).
[3][4] The Burst Cutting Area cannot be written without using special equipment, therefore it can be used as a tamper-proof means of identifying individual discs.
On Blu-ray discs, a Pre-recorded Media Serial Number (PMSN) can be stored in the BCA.