MDT - Need Help Adding Windows Media Player to Specific Deployments

I'm using MDT in conjunction with WDS to deploy Windows 7 in my organization. I use the MDT Computers database to profile machines. (i.e. select certain applications to be installed to specific machines based on MAC address.) In my reference images I have removed all the components under Media Features, as most users do not need them. However, some users need Windows Media Player.

In the Computers Database properties, under the Details section, I noticed a property called OSFeatures. I tried setting the value to MediaPlayback,WindowsMediaPlayer and just WindowsMediaPlayer, but Windows Media Player does not get installed. Am I not entering the value correctly?

My goal is to be able to add Windows Media Player to specific machines.

Thanks in advance