The only major difference for the data storage layer is the implementation language.

数据存储层唯一的一个大的区别是所用的实现语言。

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These counters are maintained automatically at the storage layer without requiring any switch.

这些计数器将在存储层上自动维护，不需要进行任何切换。

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Storage layer: to achieve dual storage, storage system without a single point of failure.

存储层：实现存储双活，存储系统无单点故障点。

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Why Blu-Ray NEEDS 25 GB of storage per layer.

ENGADGET: Interview with HD-DVD Promotions Group - HD Issues HD

The third layer uses TLC memory for capacity storage at a much lower price per bit.

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Zech (The ADVENT Group of Colorado Springs, CO) noted optical storage technology expert, a new commercial optical storage technology using UV light would probably have to be in the 200 nm range and would provide storage capacities of over 100 GB in a single layer.

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