If you have a modern television set - a nice big flat screen HDTV with 1080p resolution - and you're using a standard DVD player with standard DVDs to drive it, then you're not really enjoying the full benefit of your lovely big flat screen. Standard DVDs simply don't have enough storage capacity to provide the quantity of information needed to maximize your enjoyment of a big, modern TV set.
That's where blu-ray comes in. Blu-ray DVD players use a blue laser instead of a red one to read the information from blu-ray discs. That's why it's called blu-ray by the way.
The blu-ray discs themselves are multi-layered, and the combination of blue laser reading and multi-layer technology discs means that much more information can be stored on a blu-ray DVD. A typical blu-ray disc will store 5X as much data as a conventional DVD.
That additional information can be used to drive your big flat screen a lot more efficiently. You'll notice a marked improvement in both audio and video quality when you make the switch to blu-ray.
And there's never been a better time to change. Prices have dropped a lot over the last eighteen months or so. You will now find plenty of blu-ray dvd players under $100 available on the market.
These aren't cheap, copycat imports from the far east. You will find some very well known brand name blu-ray players available for under the $100 mark. Some of them even have wi-fi connectivity (which is great if you don't want cable spaghetti in your living room). You can even find 3D blu-ray players selling for less than $100 these days.
The market has just reached that tipping point where the technology has, for a variety of different reasons, become much more accessible and affordable. If you haven't tried blu-ray yet, then this is definitely the right time to dip your toe in the water.