HD Tune是一款免費又小巧的硬碟檢測程式，它可以幫我們顯示出硬碟的相關詳細資訊，還能測試硬碟的傳輸速度（最大／最小／平均）、CPU使用率，還能監控硬碟的溫度，避免硬碟溫度過高，而導致硬碟壽命減短的情況。
另外它還提供了一個硬碟磁區檢查功能，可讓我們用來檢查硬碟是否有磁區損壞的情況。
HD Tune is a Hard Disk utility which has the following functions:
* Benchmark: measures the performance
* Info: shows detailed information
* Health: checks the health status by using SMART
* Error Scan: scans the surface for errors
* Temperature display
HD Tune may also work with other storage devices such as memory cards, USB sticks, iPods, etc.
http://www.hdtune.com/
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