Blu-ray is a format created for high capacity data and high definition video. Here are features that Blu-ray discs are capable of that DVDs are not:
• Increased disc capacity allowing for HD video up to 1080p resolution.
• 7.1 channels of uncompressed audio.
• New menu integration with increased interactivity and menu navigation over
top of playing video.
• Enhanced Network/internet connectivity
• Higher capacity for storing and transferring amounts of data larger than 5GB
• Picture-in-picture functionality
• Faster playback and burning speeds
• Improved disc coating with increased resistance to scratches and smudges.