haha, you ran into the same problem i ran into. And I'm guessing you probly found a site similar to the one i found with the catalog number. It's cat number is 5c-062-05249 and it seems to be the only white Dark Side album that's actually real. Which for me means, hold on to it. If they are very rare, then in 20 years, i'll be the onyl one that has one... i hope, if not, i know some peopel that know some people that rob some people.
Anyway, thanks for the help. BTW, i'm starting a collection of colored records for the novelty of it all, just got a pink animals record in the mail, that makes 3 copies of animals, one of em pink. gotta love ebay!