On Feb 25, 2009, the mcdc server experienced a hard drive error, and data for sf32000 was lost. We have been able to recover the bulk of our data holdings but there still may be items that have not been restored. If there is a particular data set that you need and do not see, please contact the MCDC and we may be able to expedite the recovery of that data set. MCDC Staff. April, 2009