Blue Ray Dvd Player Recorder I Would Like To Find Out Where Can I Buy A Low Priced HD DVD Player/recorder In Sydney, Australia?

I would like to find out where can I buy a low priced HD DVD Player/recorder in Sydney, Australia? - blue ray dvd player recorder

What are the benefits of HD-DVD formats, to join the Blu-ray device?
Can you standard DVD movies and other TV series in the DVD / HD / recorder?
Why Blu-ray more expensive than regular CDs?
Why are there region-code on all disks?