i'm getting this too, my motherboard is Wolfdale 1333-D667 R2.0, i've downloaded modded bios , so i decided to make my own with tool provided on the forum, but i'm still getting this problem, i'm using a pendrive to flash it and i'm using the same tool as above to format it
Luckily I found this thread, one possibility is that you're not typing in the bios name exactly as it appears (with all the capitalized letters and such) and possibly the extension, but I'm not sure if that was required, I played it safe and included it anyway. So yea, try typing in the bios name exactly as you see it.