I've tried all the suggestions in the corrupt/broken DLs support article; none of them helped. I'm downloading using my browser (Firefox 3.6.10), not the GoG downloader. OS is Windows 7 Professional 64-bit.
At this point I'm starting to consider the possibility that the file's screwed up at the source. Any suggestions? I've managed to download and backup all my GoG games over the past two days without a single problem...except for this one. And since ...2.bin is a 1.6GB file, re-downloading it over and over is fast starting to wear on my nerves. And my bandwidth.