I've seen this problem, and solved it by simply rebooting...and one time by reformatting and doing a clean install of the OS...

there is something deep and dark going on here...I've never figured out the real root of it, but I suspect its something to do with a malicious script (read virus) embedded in certain downloaded files...

how about this...try uninstalling all burning software and any codecs you have instaled...then reinstall...and while you're at it do a virus scan

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So Long and Thanks for All the Files
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