This is a problem I hadn't yet heard of, so it fascinates me to no end. We all know VLC, right? It's one of the best video players out there, and while I myself generally just install the K-Lite Codec Pack, VLC is definitely a good alternative - and pretty much the norm on Linux. They're having a problem, though: malicious folk are bundling VLC with malware, offering it up for download as the official VLC, and misleading users in the process. Not only does this violate the GPL - it's pretty damn low, too.