When a DJ scratches a record, what is the role of the crossfader?

Now, I just have kind of started to find DJing interesting and I think I'm just going to get like a beginner's kit thing, but...

How do you erase everything at once?

What website can you record your singing using a microphone using music at the background? For free

What is the oldest known recorded computer virus?

I want to make videos for xbox and what's are some good programs that are cheap to use to record it withought having to hold ...

My movie maker cant use stereo mix... So I cant record sound... From internet...

How do you record sound on Windows XP service pack 2? Like from outside sources.

Do you know any sound recorder software that I can record sounds for unlimited amount of time

guyz please where can i get dj mixer for my phone free? the nokia n series dj mixer which i saw was not my screen size.

Does anyone know of a free public website for the state of pa to see criminal records from arrests?