Because the term HD is being thrown around a great deal in the media and on the web, we would like to clarify a few key points on it for you. (The following was compiled from wikipedia.org)
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| HD___________________________________________ |
| HD or High Definition, as it is used in reference to HDTV, HDV, HD Editing, HD DVD, and Blu-ray discs, refers to image resolution. Image resolution describes the level of detail an image holds. It is quantified by how close lines can be to each other and still be distinguished as separate. In digital imaging, the image resolution is referred to as the pixel count. A pixel is simply a picture element or a single point in a graphic. Below is an illustration taken from wikipedia.org that shows how the same image might appear at different pixel resolutions. |
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| HD vs SD_____________________________________ |
| HD has at least twice the linear resolution of SD (Standard Definition). This allows much more detail to be shown on an HDTV, HD DVD, and Blu-ray disc then with an SD television (SDTV) and regular DVD. In addition, all HD images are captured in a 16:9 aspect ratio, which allows an increase in effective resolution without letter |
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| boxing or anamorphic stretching. The illustration to the top right taken from wikipedia.org shows the simple difference between an image on an HDTV and a SDTV. |
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| HDV_________________________________________ |
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High Definition Video is a video format designed to record high resolution imaging (at the HDTV quality level) onto a standard DV media (MiniDV). With 3 censors that each measure 1/3 of an inch and hold 1,120,000 pixels each Bigler Production's Sony FX1s are able to capture amazing, high resolution images that truly capture the moment. If its not an HDV camera its not worth your time! |
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| Editing HDV___________________________________ |
| When HDV and DV (standard Digital Video) are filmed they are compressed in order to fit onto the camera’s MiniDV cassettes. Because of the drastic differences in HDV and DV each format has its own compression system. Because of the complexity of the HD compression (MPEG-2) editing in HD is much more taxing on the computer systems then DV. Not only are the simple edits much more complex but they take |
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| up nearly 50% more space then editing in the standard video format. The additional work for the computers and the extra space is a small price to pay for the drastic benefit of a final product in HD! |
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HDV to DV conversion!__________________________
In order to watch HDV footage you must have an HD DVD or Blu-ray player and an HDTV. But only a small percentage of the population has spent the $$$ needed to be able to watch their home moves in HD. So why does Bigler Productions make such a big deal over something that so few of its customers will enjoy? HDV to DV conversion is the answer! Bigler Productions is able to film in HDV then convert it to DV before editing. This allows for a better image resolution then filming in standard DV while at the same time allowing for everyone with a standard DVD player the benefit of HD. Because there is no time difference associated with the HDV to DV conversion Bigler Productions films every production in HD at no additional charge and then simply converts it to DV before editing. |
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Pre vs. Post editing conversion_____________________
The conversion process can also be completed after the editing has been done. The benefit of post editing conversion is that you maintain the HD quality for a longer period of time and the result is a better resolution then pre editing conversion. Another benefit to post editing conversion is that if you choose at a later date to have your video burned in HD using an HD DVD or Blu-ray Disc there is no additional work needed. If you did pre-editing conversion an entirely new version of the production would have to be recaptured and edited in HD. Because of the additional tax on the computer and the amount of space post editing conversion consumes there are additional fees associated with this option. |
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| HD DVD vs. Blu-ray____________________________ |
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HD DVD and Blu-ray Disc are the two competing formats for High Definition DVDs. This competition is similar to the VHS vs. Beta battle when videocassettes first came out and the more recent competition between DVD +R and –R. The difference between the two is the laser. HD DVDs use the same technology that current DVD burners use. Blu-ray burners use a blue laser that allows greater data storage than HD DVDs. Standard DVDs hold 4.7 |
Gigabytes (GB) and double-layered standard DVDs hold 8.4GB. HD DVDs can hold 15GB and double-layered HD DVDs can hold 30GB. Blu-rays Discs can hold 25GB and double-layered Blu-rays Discs can hold 50GB. It’s these size capabilities that allow both HD DVD and Blu-ray to hold the massive amount of data that HD content requires.
So who will win the battle and what does it mean to the consumer?
(The following paragraph is the opinion of Bigler Productions and should not be misconstrued as fact.)
It is Bigler Productions opinion that Blu-ray will win this battle. Blu-ray simply has more future possibilities and it has the bigger names supporting it. |
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