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Front Surface Recording Reliability Studies

The data reliability of a front surface optical recording system using a 32 mm disk is demonstrated. The system has approximately the same areal density as the digital versatile disk (DVD) system but utilizes an enhanced error correction coding (ECC) architecture. Theoretical statistical error analysis of the ECC subsystem shows a significantly reduced mis-correction probability. Experimental results from laboratory smoke and dust contamination studies as well as real world experiments performed in an office, a smoky bar, and a greasy kitchen environment are discussed and confirm the robust performance of the system predicted by the theory.