Comments by "Neil Forbes" (@neilforbes416) on "DVD: The Death Knell of Laserdisc" video.
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@akimbofurry2179 You underestimate the capacity of the single-layer DVD disc. From the get-go, the capacity of the disc was 4.7Gb, 2 gigabytes more than you gave them credit for. This was also the capacity for the first DVD+/-R discs(DVD+R or DVD-R) for home-burning of video content(home videos) or for file storage. Thus, a company transferring a feature movie to DVD(Digital Versatile Disc) should be able to get the entire movie onto one disc, with just a modicum of compression, remembering again the capacity was 4.7Gb, not 2.7Gb. A 2 Hr.40+m movie should, with the touch of compression, easily fit the 4.7Gb disc When the dual-layer DVD came along, the capacity increased to about 8.7Gb, not quite twice that of the single-layer disc but enough to provide more "headroom" for longer movies without needing any degree of compression. Some of the latter Harry Potter movies come within a sneeze of reaching 3 hours - epic features indeed! There is one huge drawback for DVD+R or DVD-R dual-layer discs, they're fine for storage of movies or data, but don't expect your home DVD player to handle them! I tried it! I burned some home movies onto a dual-layer disc and the player "just didn't want to know about them", totally refused to play the disc.
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@akimbofurry2179 I'll accept you had a "typo" and meant to type 4.7Gb for the DVD capacity, but what I'm saying is that the quality of video would not have suffered as much as what you suspect, in fact, the quality loss would be negligible. The movie would've, if processed by a competent DVD processing firm, presented with its full 16:9 wide-screen aspect ratio, and its audio transferred intact, in full stereo. Which brings me back to what I've suspected all along. The processing firm did such a shoddy job at transferring the movie to DVD that they needed to put it across two discs, like the old Laser Discs had to spread the movie(any title) across both sides of the 12-inch LP Record sized disc, technology gain = "goose-eggs!" A lot of early DVDs were single-layer, carrying titles of over 2 hours in length with wide-screen aspect ratio and stereo sound. But they were processed by COMPETENT corporations. Thus you need to look at the package of your movie to see who manufactured the disc(s). Perhaps you'll be lucky to come across a new copy of "Gangs Of New York" which may be a two-disc set, but the movie will be on the first disc and "bonus features" on the second disc because the movie will be processed by a company who knows what they're doing.
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