Hello, there's great games like Madworld or House of the Dead: Overkill, but to short compared to xbox360 games. There's no reason why this happen, becose the Wii DVDs storage media has enought capacitiy from 4.5GB to dual-layer DVDs at 9 GB the same as xbox360's DVDs has.
Madworld only has 8 hours to complete, HOTD has 7 hours, when almost be 20 hours the standard in video games.
SSBB is the only Wii game that uses the 9GB dual-layer DVD and it's from first-party, the third-parties must use these new formats to more long games appear, extended levels, more detailed graphics, more features, more modes...etc.
What you think?