From the
review of BenQ 1620 ...
Quote:
Unlike other drives which preset the writing power before the actual writing of data, the WOPC II (Walking Optimal Power Control) algorithm evaluates the writing quality constantly and adjusts the writing power accordingly in order to ensure the best possible writing quality over the entire disc.
The BLER OPC (Block Error Rate Optimal Power Control) further enhances the writing quality near the end of the disc, where the risk of warping is higher.
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WOPC tool allows you to disable or enable WOPC on BenQ 1620 and similar drives. You can gain a few seconds when WOPC is disabled, also the quality on some disc is better when WOPC is disabled. WOPC can also be disabled in QSuite but QSuite only supports BenQ 1620 with firmwares B7U9 and newer and BenQ 1625/1640. WOPC Tool works also with other firmwares.. like Philips P3.2, P3.4, older BenQ 1620 firmwares like B7T9, B7P9... actually with all firmwares that support the command for disabling WOPC.