Source: CDRLabs

If you've read any of the info on Plextor's new PlexWriter 40/12/40A in the last few days, you've probably seen something called VariRec. Like Yamaha's Audio Master technology, VariRec has been designed to reduce jitter. Here's a small bit of their explanation:

"Plextor's newest feature is VariRec: the Variable Recording function. It allows changing the laser power when writing CD-DA on CD-R at 4X. (TAO or DAO). The user can make a slight modification to a default setting. This default setting reflects an optimised laser power with lowest jitter. The result will be a change of sound or sound quality and an increase of playability or compatibility with existing players.

More information on VariRec can be found on Plextor Europe's website.

中文簡單說明：
VariRec 類似 Yamaha 的 Audio Master 技術，可以在 4X 時讓使用者進行雷射功率微調（正負兩級），藉由最佳畫雷射功率使 Jitter 的發生降至最低程度，使燒錄 Audio CD 時，讓聲音達到完美的境界！也可以增加硬體相容性。不過請看清楚，要有這樣好康的功能是 4X！各位追求快速燒錄又要求完美音質的人，醒醒吧！