Windows 7 Codec Pack
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Full user review
Won't work with Media Player and Blu-ray
I had no problems playing any video. Got a new blu-ray drive and wanted to play blu-rays. Downloaded the codec pack which specifically says it can be used with blu-rays and Media Player. Installed, tested...doesn't work. Media Player errors out when trying to play a blu-ray. Everything else still works, but the only reason I installed it was for the blu-ray codec.