Downloads the SPC14 files with BITS instead of WebClient

DownloadSPC14.ps1

[Environment]::CurrentDirectory=(Get-Location -PSProvider FileSystem).ProviderPath
$rss = (new-object net.webclient)

$a = [xml]($rss.downloadstring("http://channel9.msdn.com/Events/SharePoint-Conference/2014/RSS/mp4high"))

$a.rss.channel.item | foreach {
    $code = $_.comments.split("/") | select -last 1
    $url = New-Object System.Uri($_.enclosure.url)

    $file = $code + "-" + $_.creator + "-" + $_.title.Replace("'","").Replace("*","").Replace(":", "-").Replace("?", "").Replace("/", "-").Replace("<", "")
    $file = $file + ".mp4"

    Write-Host "Generated file name $($file)" -ForegroundColor DarkCyan

    if (!(test-path $file)) {
        Write-Host -ForegroundColor Cyan "Dowloading $($file)" 
        Start-BitsTransfer -Source $url -Destination $file -Asynchronous
    }
}

$jobs = Get-BitsTransfer | ? { $_.JobState -eq "Transferring" }; 
while ($jobs.Count -gt 0) { 
    $totalbytes=0;
    $bytestransferred=0; 
    foreach ($job in $jobs) { 
        $totalbytes += $job.BytesTotal; 
        $bytestransferred += $job.bytestransferred 
    }
    [int]$pctComplete = $(($bytestransferred*100)/$totalbytes); 
    Write-Progress -Status "Transferring $bytestransferred of $totalbytes ($pctComplete%)" -Activity "Dowloading SPC files" -PercentComplete $pctComplete 
}