Some messages use strings like:

\Device\Harddisk0\DR0
\Device\Harddisk1\DR8
\Device\Harddisk1\DP(1)0-0+9

Does anybody have an idea what DRx and DPx mean? And how am I supposed to interpret "DP(1)0-0+9"?? I spent half a day searching the Web, but nobody seems to know.