Blu-ray players support 7.1 audio formats and high-quality, lossless surround sound. While your high-def disc player and receiver may be able to decode these new surround sound formats, not all discs you play will take advantage of them.
You can choose to store your files on your Chromebook or online with a cloud-based file storage service like Google Drive. With Google Drive, your data is stored in Google's highly secure data centers. The Terms of Service make clear that what belongs to you stays yours..
Google is working toward allowing all Android apps to run on Chrome OS. They recently released just four Android apps for Chrome, but enterprising hackers (the good kind) have found ways to make (almost) any Android app run on a Chromebook. Yes, this means you can now use Skype on a Chromebook.