Data recovery involves correcting a failure of the “disk drive system”. There are complex areas of potential failure consisting of firmware, hardware, mechanics, and hidden files that are unique and specific to each disk. We also utilize expensive specialized equipment to access the hidden layers of a disk drive. Additionally we often must match failed components on disk drives that were only produced for a very small period of time, perhaps only a few weeks. Finding components that match can be an expensive process. Much like finding a donor in a human organ matching process.