Samsung has unveiled their new hybrid hard drives (HHD) composed of storage in the form of partially platter based (rotating) storage and flash memory storage. The flash memory works like a prefetch cache, but because it’s much faster than platter technology there should be significant speed increases on bootup and with writing small files. Once the buffer is full, data is transferred to the platters to free up room. Large files will be streamed directly to the platters. They’re starting with 128 and 256 MB of flash memory on the drives. Unfortunately the drives will only be compatible with Windows Vista, due to the memory management technologies employed in the OS. Samsung is specifically catering to laptop users first using this technology as the idea is that not spinning up the platters will also make a significant power saving.