What is the function of index.dat, what info does it contain, and why does it seem impossible to clean? Why does it always say it is 32K large?

Yes I have checked the Audio Mixer settings they are all on. I have also got the right country setting for my region. By the way I am running Windows XP professional. The problem only occurs with...

I try to play DVDs on my Windows Media Player 11 and I cannot get a sound. The picture is fine. Where can I get a free codec (and it should be free as the software is not doing what it says it...