Comment 5 for bug 916554

So far, I have been unable to reproduce this with win32image-writer 0.4. I am using ChromeOS-Vanilla-1586.0.2012_01_16_1658-ref7df61a.zip from http://chromeos.hexxeh.net/ on both Windows XP and Windows 7 Home Starter. My USB drive that I am writing to is a Corsair Voyager-mini 4G usb drive.

Not sure what else to tell you. Given the nature of chromeOS, it is possible you have a bad release (it is built daily). I suggest getting a newer copy (at least try the version I mentioned as a baseline).

If you have further issues, please don't hesitate to ask.