Links
Benchmarks / utilities
HD Tune Pro (hard disks)
http://www.hdtune.com
Benchmark/tools for hard drives.
Opti Drive Control
Benchmark/tools for CD/DVD and BD drives.
http://www.optidrivecontrol.com
Drive Power Manager
To change the power and speed settings of hard drives and CD/DVD/BD drives.
http://www.drivepowermanager.com