Microsoft Technology Licensing, LLC

Vadim Mesonzhnik

Roy Varshavsky

A data storage medium may have data stored on one physical portion of the medium and error correction and recovery data stored on a second physical portion of the medium. In one embodiment, a write once, read many medium may be written with data and the remaining capacity of the medium may be filled with error correction and recovery data. If a portion of the main data is corrupted, the error correction and recovery data may be used to recreate the corrupted data. The error correction and recovery data may be created to fill the unused capacity of the medium by prioritizing and selectively backing up the data when the data use more than half of the medium's capacity, or may create one or more redundant copies of the data if the data consume less than half of the medium's capacity, for example.

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Yoqneam Illit, Israel

Vadim Mesonzhnik