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..
If you create a folder in Drive on the web, you should be able to upload photos directly to that folder from your iPhone. For example, I use a folder called iPhone Photos to backup my photos. When you have located the photos you wish to store locally on your Chromebook, you can download them one of two ways.