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What is the difference in quality between a high definition DVD recorder and a Blue Ray DVD RECORDER?
If it takes 30 gigabytes to record a High definition Video then isn't it really necessary to record it on a Blue Ray DVD which has 25 gigabytes of memory as opposed to just the 4.6 gigabytes memory it is normally compacted to?
ANyway, most movies are recorded on a 4.6 gig DVD anyway right? So what makes the BLUE RAY so special or practical?
Your question is fairly unclear. Regular DVDs are not HD, they are standard definition. They could hold HD video, but not enough of it for most movies. Regular DVDs hold about 4.7 GB for a single-layer DVD and about 8.5 GB for a double-layer DVD (double-layer is what movies are recorded on). HD DVDs hold about 15 GB per layer, and are planed to use three layers at first. Blu-ray discs hold about 25 GB per layer and are planned to use two layers at first.
HD DVDs and Blu-ray discs are very similar, and will hold about the same amount of information. The main difference is Blu-ray discs have a .1 mm surface layer and HD DVDs have a .6 mm surface layer--this is what causes the Blu-ray disc to have a larger capacity per layer. Unfortunately, until a clear winner has been decided, for a while they may both be used and this could cause consumers to need to buy both types of players in order to watch all HD movies.
For more information, visit the links below.
Hope this clears things up.
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