I'm not entirely sure if this is something new, but previously when I visited MySpace's Music homepage and clicked on a featured video the site would take me to their own embedded player with fan comments, links etc. But now if you click on one of those videos you get this, and more importantly the videos are played in Windows Media Player!
The funny thing is MySpace still has it's embedded player for user uploaded videos, but is using Windows Media for it's officially licensed music videos. Which raises the question, is YouTube next? And how do I play Windows Media files on my Mac?
It's obvious that MySpace has done this to avoid unnecessary lawsuits like the ones YouTube has to deal with, but it also makes their Music site a little bit less essential. And isn't MySpace all buddy-buddy with Google - which owns YouTube? We'll have to see how this plays out in the long run.