They look to be the same. The name "Unicorn" is mentioned on the Limited Warranty section of the user manual. It might be a distributor or a manufacturer's name. Screen shots from the user manual also show Korean text so it might be manufactured in Korea.
I live in Tokyo and was about to purchase the DC-MCNP1 from the digital cowboy website but learned from another poster on another forum that it's the same as the Xtreamer, which is a lot cheaper than the Japanese distributor's price, even including international shipping, I saved nearly 5,000 yen.
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