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..
Not sure what exactly do you mean but there is no way you can manage 60,000 photos with the cloud Google Photos the same easy way as using Picasa Desktop and album sync to Picasa Web Albums. I'm dealing with it - moving away from Google photo management and storage.