The Tech Report sat down with Matt Rutledge, Vice President of Western Digital's client computing group to discuss the software behind their new HDDs with an SSD cache.  Sandisk will be providing the hardware and WD who will be providing the custom caching software which will not be coded into the hardware but will function at the driver level.  Matt mentioned that this software can also make use of the system's memory and incorporate it into the cache as well though it was not completely clear if there will be many user editable settings.  Check the interview out.

"WD revealed that its hybrid drives will use SanDisk iSSD flash components. The announcement was devoid of details on how the caching system works, but we can now shed new light on the software-managed scheme."

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