Microsoft last night posted a video (below) taking a mild jab at Apple for the lack of Blu-ray on Macs. The ad for now appears to be YouTube only, not for TV use.
Windows has an advantage in optical drive support by having basic support for Blu-ray movies in the OS. Apple chief Steve Jobs is well known for having referred to Blu-ray as a “bag of hurt” because it requires extensive, OS-level support for AACS encryption and other copy protection mechanisms that aren’t needed for DVD or downloads