Download Build 2011 Sessions using Titles

Get-Build2011Sessions.ps1

[Environment]::CurrentDirectory=(Get-Location -PSProvider FileSystem).ProviderPath 
$a = ([xml](new-object net.webclient).downloadstring("http://channel9.msdn.com/Events/BUILD/BUILD2011/RSS/wmv")) 
$a.rss.channel.item | foreach{  
    $url = New-Object System.Uri($_.enclosure.url) 
    $sessionUrl = New-Object System.Uri($_.link) 
    $file = $sessionUrl.segments[-1] + " - " + $_.title.Replace("""", "'").Replace(":", "-") + ".wmv"
    if (!(test-path $file)) 
    { 
        Write-Host "Downloading $file"
        (New-Object System.Net.WebClient).DownloadFile($url, $file) 
    } 
}