I just replaced a Seagate 1TB HD (which was displaying a slowly increasing Reallocated Sector Count) with a similar Seagate 1.5TB drive. SpeedFan's S.M.A.R.T. readout of the old drive indicated a Raw Count of 000000000013 Reallocated Sectors at the time of replacement. The new drive shows a Raw Count of 00000000000D which has not changed since the drive was installed. Question. What does the "D" at the end of the Raw Count string mean?