What is the advantage of a Blu-Ray dvd player?

Sony Blu-Ray DVD Player – BDPS300

9.99

Related posts:

1. Is a combo HD and Blu-ray dvd player better, same, or worse than a seperate Sony Blu-ray player?
2. I have a sony blu ray dvd player and want to add a surround sound but dont want to buy another dvd player HOW?
3. can an hd/blu ray dvd play on a regular dvd player and still have the same picture quality?
4. can an hd/blu ray dvd play on a regular dvd player and still have the same picture quality?
5. Can a blu-ray dvd player play normal DVDs as well as blu-ray dvds?