Keeping track of downloads – is there a way?

Hey guys,

I am adding a page of free music to download from my artist’s website. I am asking people to leave their email address in return.

However, is there a way, to get them to leave their email THEN get sent to the download page? (i.e they only get the download IF they leave their email)

The main thing here is that we keep a track of the number of downloads. Is there a simpler way to do this? Any idea’s..??

Thanks heaps