| 摘要 |
A storage medium (800) capable of being read by player (900), the storage medium comprising: digital content disposed along one or more tracks (104) of the storage medium; and an authentication program (808) disposed along the one or more tracks of the storage medium for authenticating (1000, 1100) the storage medium by determining whether the one or more vague bits (330, 332, 424, 426, 428, 524, 526, 528, 624, 626, 628, 724, 726, 728) exist at the one or more predetermined locations (810). There are also provided a method for authenticating (1000, 1100) a storage medium and a method for crating (1200, 1300, 1400) a storage medium having the one or more vague bits.
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