Corrupt PS3 Downloads (CRC errors)

Hey, Vimm's Lair is awesome but unfortunately I've been getting CRC errors on some of the big PS3 downloads (God of War 3 & Tekken Hybrid). I don't want to hammer the server trying to redownload. Any ideas what this could be? I tried to find software that checks your download again a download link and fixes it, but I haven't found anything like that. I think it might be the downloads themselves on the server that have the issue though.