I've heard of (and even sometimes used) video players like VLC when Windows Media Player prompts me to download "new codecs", but I've also heard people talk about codec packs like K-Lite, Shark007, ...

I was at winsupersite.com and read about the registry tweak to enable higher bitrate mp3 encoding with an external encoder using Windows Media Player 8 in Windows XP. The only question I have is where ...