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..
There are millions of apps and games available to download from the Google Play store (formerly Android Market). There are camera apps that allow you to take pictures with artistic effects and music players which allow you to stream songs from the web or create playlists.