Old Calibration xtc files are archived from Aug 2003 to June 2004 sorted into 
two separate tar files, using mstore.

These archived tar files can be retrieved, using mstore as follows:

mstore get /nfs/mstore/u/dwalker/bbremt/calibrationRuns/calibRunsAug2003-Jan2004.tar
mstore get /nfs/mstore/u/dwalker/bbremt/calibrationRuns/calibRunsJan2004-Jun2004.tar

and then using tar to unpack the xtc files as follows:

tar -x <archive name>