The latest NPD sales figures are only just with us and already the bickering is starting, MTV talking up the success of The Beatles: Rock Band over rival music release Guitar Hero 5.

"We outsold them two-to-one on a revenue basis and we outperformed on a unit basis as well, despite the fact that they had an eight-day advantage, and were giving away free software," railed MTV Games general manager Scott Guthrie according to Gamasutra.

"At the end of the day, The Beatles: Rock Band clearly outperformed them, and were not done yet. We're anticipating a very successful holiday period."

Guthrie goes on to express his surprise at Guitar Hero 5's use of Van Halen tracks - which are now free despite originally being planned as 'premium' downloads.

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