Archive for October, 2008


   

Understanding 1080p, High Resolution & Blu-Ray Players

If you haven’t had the pleasure of viewing a Blu-Ray movie or disc, you just may be asking yourself:

Why do I need a Blu-ray Player?

Here’s your simple answer: You need a Blu-ray System for the High Resolution and Supreme Audio! But to really understand the full reasons behind owning a Blu-ray system, you much have a basic understanding of High Resolution, 1080p and High Definition Televisions.

Mainly because, high resolution is at the heart of why you should want a Blu-ray player. It is often the driving force or factor why anyone buys a Blu-ray player: you get much superior visuals and a much better audio experience from a Blu-ray than you will get from a standard DVD. Resolution simply means the sharpness of the picture, commonly measure in “lines”. Obviously, the greater the number of lines, the sharper your picture will be.

Interlaced(i) vs Progressive(p) Scanning

Now you have probably heard of Interlaced and Progressive scans which are two methods of how these lines are displayed. Interlaced scan displays all the odd number lines first, followed by all the even number lines. Whereas a progressive scan displays all the lines sequentially from top to bottom. Remember, progressive scanning is the better method since it produces a smoother video which has a clearer image, especially with fast-moving scenes.

So, if progressive is better, why would you want to settle with interlaced. One good thing about interlace is the less amount of data going through the connection. This enables a more proficient transmission of signals and to manufacturer hardware which can display the picture.

1080i vs 1080p

If you have bought an HDTV set lately, you will know 720p,1080i and 1080p are terms used to describe the native resolution of an HDTV, this is the resolution that’s shown on your HD Television whether it be a broadcast image or whether it’s one produced from a disc. The numbers 720 or 1080 refers to the number of horizontal lines which fill the screen. Obviously since 1080 has the more lines, it will be the higher resolution. Standard definition is much lower at 480i.

There are usually just five common resolution standards. They are 480i, 480p, 720p, 1080i and

Standard DVD Resolution:

480i – 640 pixels per line which has 480 horizontal lines – displayed alternately. In other words, Interlaced Scanning where all the odd lines are displayed, then followed by all the even lines. (Standard Definition TV)

480p – 720 pixels per line which has 480 horizontal lines which uses Progressive Scanning – each line displayed following another. (Standard Definition DVD)

High Definition Blu-ray Resolution:

720p – 1,280 pixels per line which has 720 horizontal lines – displayed thru Progressive Scanning – each line displayed following another. (720 High Definition TV)

1080i – 1,920 pixels per line which has 1,080 horizontal lines – displayed alternately. Interlaced Scanning – all the odd lines are displayed, then followed by all the even lines. (1080i High Definition TV)

1080p – 1,920 pixels per line which has 1,080 horizontal lines – displayed progressively. Progressive Scanning – each line displayed following another. (1080p High Definition TV/ Blu-ray Disc)

Why Is Blu-ray The Best?

You’re probably wondering why everyone is singing the praises of Blu-ray and why it’s the best system if you want the sharpest images? While almost all HDTV offer 720p/1080i and 1080p resolutions – only Blu-ray can deliver full 1080p content. High definition TV broadcast have a maximum resolution of 720p or 1080i. Remember your TV will display or show the best quality it can, based on the content being provided. The best POSSIBLE resolution of 1080p, also known as Full HD, is displayed with the Blu-ray player.

This full High Definition format has digital sampling structure of 1920(H) x 1080(V) which operates at 24-frames per second progressively scanning. Keep in mind, other video resolutions are possible with your TV such as 720p, 1080i and so on. Just because your TV screen has 1080 lines, does not always mean it is capable of displaying 1080p. Always check to be sure. Your Blu-ray player will correspond with your TV’s video parameters.

By: Curtis Hoskins

Jumper Blu-ray Review

I jumped right to my computer to type a review after seeing this romantic action flick to tell you my findings. No actually that sentence doesn’t really make sense, I waited for quite some time. I think I was obsessed with using the word jump in my opening sentence, I’m sorry. So let’s take about jumper.

Story

Jumper is the story about a race that can jump to other locations in the world in a matter of seconds. The movie is about David, an unpopular high school student that finds out about his jumping abilities after nearly drowning to death at a lake close the his school. He is in love with Millie and instead of telling her about his amazing discovery and jumping her to her favorite MySpace spots, he decides to stop seeing her for 10 years. Well actually he meant to stay away for ever but he got curious. Little does David know that another race with gadgets,we won’t see for another 50 years, are after him and wants to kill him because he does things only god should be able to do. It’s a really weird thing to say because saints say that every living being is created by god, and on top of that they kill people which the big man can’t approve. Taking everything into consideration jumper has a very decent story with a few great twists. But it doesn’t go really deep into the relationship between David and Millie, nor will it tell the tale of the race in “Lord of the Rings” style depth. But that’s okay because it makes the movie a fast pace action movie, which most will love.

Presentation

The Blu-ray film was noise free and had a crisp screen. The sound was also top notch. The sound effects for example when the main character was underwater, or during the jumps, were great. It gave huge pleasure to see and hear the impacts that the jumps made to the small areas he jumped too. For example in this one scene when he jumped to the library. Books flew to every direction, the typical wooden book-holders fell down and the lower tones from the speakers really made you feel the impact his jump made. This is partly done because of the video/audio but maybe even more so by the special effects. Buildings collapsing, racing in the city of Tokyo and the Mercedes stealing scene were all really well done.

First the downside: jumper has a story that tries to be very interesting but barely is. However the presentation makes up for it big time and in the end every action fan will feel very satisfied about seeing this film. Some may even feel the need to jump to the bathroom because this movie will keep you glued to the big screen the whole way through. Read that last one? Good.

By: Robin Chung

Is 1080p broadcast (bluray) on a 720p hdtv same as 720p broadcast (ABC) on 720p hdtv?

Am in market for bluray player, but only have 720p hdtv. Will bluray DVDs look the same than 720p tv broadcasts, since my tv is only 720p, or will it be better? Ex. will I see more detail in Lost series 3 in Bluray DVD compared to ABC’s HD broadcast of the same episodes?

By: JF