Most supposed Hi_def downloads do not come close to in quality to blu-ray (typically only 720p or very low bitrate 1080p)-
The analogy of MP3(at least variable or above 256Kbps) and CD is incorrect both of these produce excellent sound at 16bit 44Khz.
Comparing SD images to 1080p is more like the difference between AM and FM radio or a telephone at 8bit/8khz and CD at 16bit/44Khz it's a very noticable improvement in image quality by going to high bitrate 1080p.
DVD , Blu-ray and downloads all use compression. DVD is fixed to mp2 compression but blu-ray and Downloads are flexible and software upgradable. Most Importantly Blu is HIGH Bitrate 1080p not the Low bitrate noisy stuff you get off air or Download (my 3G internet costs $50 for 4 GB a month so it would be over $600 and 1 year to download a blu-ray disk of data !, If only i could get ADSL ).
Not a problem for me though With Blu-ray the 25 or 50 Gigabytes allows for a Crystal clear image with no Distortion and i can buy them from a shop.
Many Consumers (like myself) want quality 1080p viewing and So blu-ray and HD TV are just the ticket and will be the big Xmas sales item for Xmas.
PS3 is driving and riding the blu-ray wave all the way.
DVD is gonna get a sound beating from blu-ray and downloads this year it will encourage more producers to go blu-ray.
PS3 number 1 fan
