WD對TLER的解說
Q: What is time-limited error recovery and why do I need it?
A: Desktop drives are designed to protect and recover data, at times pausing for as much as a few minutes to make sure that data is recovered. Inside a RAID system, where the RAID controller handles error recovery, the drive needn't pause for extended periods to recover data. In fact, heroic error recovery attempts can cause a RAID system to drop a drive out of the array. WD Caviar RE is engineered to prevent hard drive error recovery fallout by limiting the drive's error recovery time. With error recovery factory set to seven seconds, the drive has time to attempt a recovery, allow the RAID controller to log the error, and still stay online.
不過WD也推薦用於多媒體影音範圍
Q: I need A/V (audio/video) extensions.
A: A/V extensions offered by some competitors are relics of a time when hard drives were much slower and required extensive error handling logic when overwhelmed by the application. Today's much faster hard drives make these extensions unnecessary. We urge you to test WD Caviar RE in your A/V environment.

若覺得不保險也可考慮16MB buffer的KS系列，16MB buffer有益於影音編輯的效能提升。