HD or High Definition (not an abbreviation for Harley Davidson!) is a complicated debate when it comes to downloads. Do HD Film downloads exist?Question:
Is there such thing as high definition (HD) Downloads?
This question has created a divided community with people arguing that it simply is not 'high definition'. Some are even saying that BlueRay or HD-DVD won?t make it because HD downloads will simply be delivered over the Internet.
Answer:
No
The answer is no, there is no such thing as HD downloads. It is not HD that people receive when downloading a movie on their PC or Laptop via the Internet.
Why HD Film Downloads do not exist?
Just because it happens to be a high resolution, you will only be getting a video stream that?s 1.3 mbps (megabits per second) at best.
You can call it whatever you like and you can even claim it meets the minimum definition of HD because it?s 720p (1280�720) resolution but it is not High Definition (HD) for the simple reason that the bit rate isn?t enough.
A regular 480i DVD is either 2, 5, or 8 mbps and most modern dual-layer 8 GB DVD releases are at least 5 mbps but more likely 8 mbps. A typical DVD movie is approximately 6 GBs of data while a typical ?HD? movie you download is only about 1.5 GBs of data.
I feel this is more of a 'street' name given to them because they are 'high quality' downloads rather than the blog standard downloads. Maybe then they should be called HQ Downloads!
How Do I get HD Movies?
At the moment, the only way to get high definition TV or HD films is via a HD or Blu Player hooked up to a HD Ready Television and subscribe to a service such as Sky HD or purchase Blu Ray or HD DVD disks to play on your player.Further Information
A ZDNet post goes into further detail of why HD Downloads do not currently exist.