Diablo 3 was announced today and like many thousands of other gamers online right now I’m trying to download the 800mb high def gameplay trailer while putting up with the very clumsy Blizzard Downloader application. For those who don’t know, the Blizzard Downloader is just a mini BitTorrent client with a single torrent file baked in. I’m not a big fan of the downloader because I already have a BitTorrent client that’s much better at bandwidth allocation and my firewall’s already set up for that client. I’d much rather download the movie with my own client instead of Blizzards so I’ve written a little flash app to help facilitate that.

To use this, just point the app at the url of any Blizzard Downloader exe file online (I’m not sure if it’ll work with the .dmg files) and hit the ‘Extract’ button. A link will pop up below that you can click to save the torrent file. The file has no name by default so you’ll have to rename it ‘whatever.torrent’ after it finishes downloading. The resulting torrent will still connect to Blizzards tracker and you’ll download the same file you would be if you were using the Blizzard Downloader app.

This should work with all browsers other then IE 7 and below, since IE doesn’t support the data:URI scheme to create dynamic files.

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Example URLs:
Diablo 3 Gameplay Downloader
Starcraft 2 Gameplay Downloader

More Info:
Blizzard Downloader Wiki