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tripletopper
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Post subject: Inter-compatibility between Discovision and Laser Vision Posted: 29 Apr 2019, 19:24 |
Honest fan |
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Joined: 21 Apr 2017, 19:25 Posts: 113 Location: United States Has thanked: 2 times Been thanked: 1 time
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I never heard of Discoviiosn until I can here, then I read the differences are. I’m not sure if I read them correctly, or understood them, but here goes nothing.
Is the difference between a Discovision Disc and a Laser Disc that the Discovision has different analog degrees of opacity to strengthen/weaken the light passed through the disc to the laser receiver, whereas the Modern Laser Disc has analog reflective grooves that reflect back and then alters the aim/timing of where/when the laser hits the sensor. Are they that fundamentally different as one is a pass-through and the other is a bounce-off? Yet the are considered the same format?
I got a question about interoperability. Can LaserVision machines read Discovision media? Can Discovision Machines read Laser Disc Media?
If both can read each others, I don’t understand how one machine can read both if one is a pass-through technology, and the other is a bounce-off technology. And considering the fact they were both analog, it’s not as simple as a 1 or 0 but varying degrees from .000000000... to .999999999...
I don’t even if I know I’m right. A little help here.
But I know that even if that format is overcome, Dolby AC3 RF discs have a mono track for old machine compatibility, and DTS uses the digital portion, so analog only machines won’t be affected. I know THAT part of the inter-compatibility, but am not sure of the physical media differences being compatible.
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rein-o
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Post subject: Re: Inter-compatibility between Discovision and Laser Vision Posted: 29 Apr 2019, 23:08 |
Jedi Master |
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Joined: 03 May 2004, 19:05 Posts: 8106 Location: Dullaware Has thanked: 1219 times Been thanked: 844 times
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tripletopper wrote: Is the difference between a Discovision Disc and a Laser Disc that the Discovision has different analog degrees of opacity to strengthen/weaken the light passed through the disc to the laser receiver, whereas the Modern Laser Disc has analog reflective grooves that reflect back and then alters the aim/timing of where/when the laser hits the sensor. Are they that fundamentally different as one is a pass-through and the other is a bounce-off? Yet the are considered the same format? Where would you even find something like this said by anybody else in this world?? And at least his posts are getting smaller, no more novellas.
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