BD is still available at various online stores (Amazon, eBay, etc).

FWIW, this is the only topic in the forum where this particular problem is mentioned, so a corrupt torrent file seems the most likely cause (a problem while encoding or when sharing the file between servers would effect all subsequent downloads).

I'm not familiar with the no-CD crack, but AFAIK it doesn't cause any problems (none have been mentioned in the forum, anyway).