Western Digital is working on developing a hybrid drive combining spinning disk and solid state storage, along the lines of Seagate's Momentus XT. CEO John Coyne mentioned this in the earnings call for WD's second fiscal 2011 quarter, saying: "We also continue to evaluate the opportunity to combine rotating magnetic storage with flash into hybrid solutions." WD's CFO, Wolfgang Nickl, repeated this idea when talking to an investor conference last week.