What does the combination of the new drives both flash-based memory with traditional disc drives offer? Answer is simple, 50 percent reduction in hard drive power. A hybrid hard drive is the same as the Momentus 5400 PSD (Power Savings Drive).

The new Momentus 5400 PSD hard drive uses:
Non-volatile cache, or flash memory,
Solid-state drives (SSDs)
Uses hard drive data onto a 256 MB flash memory drive to enable a faster boot-up...
Disc drives for laptops has large storage capacities -- 120 GB and 160 GB drives are now common. All that disc-based storage can suck laptop batteries dry.

Charles King, principal analyst for Pund-IT, says the TechNewsWorld: "For notebooks, one of the severe battery power drains is the boot-up process -- because you're basically starting the drive from scratch and bringing it up to full speed, "There's some tricks to avoid that, like putting your laptop into sleep or hibernation mode ... but people generally feel it's better to power the system all the way down."

The main factor is that the hybrid hard drives provide faster access to laptop data. SSD starts at US$2,199. Mass production of the product is planned before the end of this year.