You have to be careful when you order something from an online site. The other day I wanted to buy a Harry Potter movie, so I went to amazon.co.jp. I found the movie, but they were selling several different versions. Without thinking, I ordered the cheapest one.When it arrived, the package was much smaller than a regular DVD. It wasn't a DVD!It was a UMD, a disc for a Play Station Portable (PSP). No wonder it was so small!
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