Media Center won't allow me to record over half an hour of HD content to my external Hard Drive even though I give it 300GB of max space. It will only allow me to record more if I change the quality of the recording. On the other hand if I start deleting things off my C: Drive I get more recording time. Edit: Nevermind no idea what happened but after restarting my computer with the settings on what I wanted them to be, the recording time changed. Not sure why it happened like that but, its fixed now.