I get the same error. I'm doing the exact same thing as 1stITMan, trying to create a boot CD with Win2k SP4 and integrated RAID driver. We have multiple Dell PowerEdge servers here so i added two Perc drivers, Perc 3/Di and Perc 4/Di. After burning the CD and popping into my test Dell PE Server with Perc 4/Di Raid, I get the same error: mraid35x.sys is corrupted, blue screen. Any ideas to get rid of this problem?