To the techies, need ur help

Can anybody explain this:

*** STOP 0x000000D1, (0xBFD4EF59, 0x00000002, 0x00000000, 0xBFD4EF59) IRQL_NOT_LESS_OR_EQUAL

***Address BFD4EF59 base at BFD1D000, Datestamp 3b38910a – ALCXWDM.SYS
***Address BFD4EF59 base at BFD1D000, Datestamp 3b38910a – ALCXWDM.SYS

Beginning Dump of Physical Memory.

What are those all about. Really confused with this.

Thanks,