Ask HN: Any ideas on how to match video games to their Amazon ASIN?

A side project of mine involves matching video games to ASINs on Amazon (www.gamerackr.com for those interested, though the accounts aren't wiped fairly often since the site isn't 'released').

I was wondering if anyone had any advice on how I could match video games to their respective ASIN on Amazon. I can obviously search and just use the search results, but I may mismatch a PS3 game to the XBOX 360 ASIN and I have only had mediocre success with this so far.

The info I have available to me locally is the game title and platform, and I can get mostly any data available in the Amazon API (though minimizing API calls is preferred since amazon has limits).

I would love to hear how others are doing matching like this for sites like goodreads.com or any other site - especially any with user generated content matching to Amazon products.