2 million copies of Halo 3: ODST are sold within 24 hrs of its release.

As informed by VGcharts, Halo 3: ODST has sold over 2 million copies in its first day of release, establishing itself as one of the best games ever. also, the Halo 3: ODST Soundtrack is charting at the number one spot for Video Game Soundtracks over at Amazon.com, adding more to its fame. Wondering how could a video sound track be so popular, just head on to Sumthing.com to see for yourself.