Anaxagoras
Posts: 3086
Joined: 5/9/2009
From: Eire
Status: offline
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ORIGINAL: Termyn8or
OK, you might already know. As such you might not be saying thanks. I will describe it. Try not to let it bother you too muck lol.
You need to watch someting that is a wide angle shot and the camera pans slowly. Now realize movie cameras can use high speed shutters (which matters) as well as a small aperature to gain more depth of focussed field. On such a scene, in daylight is when you see it. Carefully watch the subject of the shot, usually in the foreground, and as the camera pans watch the background at the same time. The timing is off, in some cases it is choppy like a streaming video is sometimes. It is important to note that the subject usually in the foreground does not "stick" or chop up like the background does.
Can't say I have noticed but I'll look out for it. I wonder could that be something to do with progressive scanning.
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A Bluray might not do this. It depends on if, with the greater storage capacity they decided to use more faithful compression schemes that don't show this anomoly, or to use it for more data. In fact it probably varies from one Bluray disk to another. I just don't know because there is no real reason for me to research it.
The good thing about blu-Ray is the 25 GB single layer capacity which is five+ times greater than DVD. With HD pictures typically being four times the size it might mean less punative compression rates.
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I used to be interested in that shit until I realized that I could never put the knowledge to use. For example you probably didn't know the the original CDs could have been recorded in true discrete four channel audio. Later I realized why they never used it. It would take totally different hardware as well as CDs for consumer use. By the time they hit the market four channel sound was pretty much dead. In fact your modern "Dolby" surround when set to simply "surround" is actually matrix surround dating back to the 1970s. I can prove it if necessary. Just more useless knowledge.
Yeah four channel was pretty much dead by then. The old Quad systems from 1970 were a complete failure. I remember reading that CD also had the option of a four channel capacity when I was reading literature on Ambisonics which is a very different four channel surround sound system. Its technically better than standard multichannel systems which differ in having a one channel to one speaker arrangement, and it can also resolve height information. However it never took off and wasn't even included with DVD specifications.
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And they worked hard on the recording scheme for CDs with a goal. The CD is the diameter it is because they wanted in dash automobile CD players to fit in the standard space alloted for a car radio in AMERICAN cars. Even thought they weren't invented here, Sony and Phillips knew where the market was. Then, we couldn't even produce a defect free enough stamped CDs in this country until a bunch of overseas consultants came over here to Telarc to figure out what they were doing wrong.
Interesting, didn't hear about that. There is another story that CDs were going to be smaller. Philips/Polydor had established plants and were well ahead of Sony by 1982 so Sony pulled a fast one and made the disc bigger apparently on a pretext that the head of Sony at the time wanted a single disc to carry a certain piece of music completely.
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RE: Movies recorded on a DVR are copywrited? - 
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