Win7 home edition --
If you're IN media center, if you put in a DVD, it will bring up "play DVD" and there you go.
But if media center isn't running and you put in a DVD, it will bring up media player. (a bit redundant if you ask me).
So, really which gives the best viewing experience for DVD's and why? (or VLC also for that matter).
By default they're using the same set of media foundation codecs, so yes, they're the same. If you want an inserted disc to load WMC instead, go into the auto play settings under control panel and change it to WMC. There can be exceptions, once you start installing additional codecs or running 32-bit MP instead of 64-bit (for instance, you can install 64-bit codecs that impact x64 WMC and MP but the x86 MP will still use the original 32-bit media foundation codecs).