Originally Posted by Voltron
Its High-Definition baby. No matter what state of the art setup you have now, you can't watch a DVD in High-Def. Also DVD's are encoded in 720x480 MAX resolution whereas true HD is 1080p resolution. Also DVD video uses compression to fit on the DVD. This applies to both audio & video.
So where Blu-Ray will shine is EXTREMELY enhanced bit-rates for audio & video. If you've ever watched a DVD in true DTS surround sound, you will be very impressed. Blu-Ray will take it a step fruther and offer DTS-HD audio. Blu-Ray holds 25GB single layer and 50GB double-layer. DVD's can only hold a MAX of 8.5GB on a double layer DVD.
You will however, need expensive home theater equipment to truly take advantage of all of this. You will need a DLP, LCD, Plasma, etc. HDTV with HDMI inputs, a Blu-Ray player (PS3), and a high end audio receiver capable of decoding all of the different enhanceed audio types like DTS, DTS-HD, etc. etc.