Sounds like you might have some bad hardware. I've had really good luck with physdiskwrite (0.5.1) and XP.
CS...
My brandnew Transcend M5-RDM5W seems to be broken because with an other CF card reader it does work...
Physdiskwrite (0.5.1) and XP did a great job :-)
Thank's a lot for the help!
John