The main event takes place around 25 minutes into the video. A CED disc is (at last) placed under the microscope. After a bit of zooming, focusing, and angling of light sources, TT blurts, “Oh my gosh. We just nailed it. Bang. Right there.”
Again, it is some text, but this time a much clearer representation of the disc content. The CED surface text is almost as clear as a stored video frame on some old film.
After that excitement, the video host moves along to look at a couple of other tech-related artifacts under the microscope. The extras include a surface study of a mixed-mode audio/data CD , and a smartphone screen close-up where the OLED (sub) pixels are clearly visible.
If you reckon the demonstrated desktop digital microscope is a good one, it is the Andonstar AD246S model. We have noticed it is currently 13% off and available for $139 on Amazon .
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Mark Tyson is a news editor at Tom's Hardware. He enjoys covering the full breadth of PC tech; from business and semiconductor design to products approaching the edge of reason. ","collapsible":{"enabled":true,"maxHeight":250,"readMoreText":"Read more","readLessText":"Read less"}}), "https://slice.vanilla.futurecdn.net/13-4-18/js/authorBio.js"); } else { console.error('%c FTE ','background: #9306F9; color: #ffffff','no lazy slice hydration function available'); } Mark Tyson Social Links Navigation News Editor Mark Tyson is a news editor at Tom's Hardware. He enjoys covering the full breadth of PC tech; from business and semiconductor design to products approaching the edge of reason.
Skramblr Title is wrong. That's not a LaserDisc, its a CED ( Capacitance Electronic Disc). These are two different things Reply
pockyfiend "Though the media looks quite a lot like a LaserDisc, a CED (Capacitance Electronic Disc) is an unusual video distribution format that existed for a time" You guys said it correctly in the very first paragraph of the article . So then how did you spend the rest of the article, as well as the headline, getting it completely wrong and calling it a "LaserDisc"? Are you just getting lazy and writing these with AI these days? 🤦♂️ This system actually used a needle, like a vinyl record player, rather than a laser, to read analog audio and analog video, unlike a LaserDisc, which was an optical disc that that used a laser like a CD player to read analog OR digital audio along with analog video (yes, optically-recorded NTSC/PAL analog video signals read by laser.) I actually had a Capacitance Electronic Disc player ("RCA VideoDisc" / "SelectaVision") was the brand name) with some titles as a kid, including a bunch of Disney discs and Bakshi's The Hobbit. Recently, cleaning out my parents ' basement, I even found some softcore erotica. Reply
bit_user Loosely related (about LDs, not CEDs): the first time I saw a CAV laserdisc in person, I knew enough about video that I actually understood the significance of being able to see the line and field structure. That blew me away! If you knew where to look, you could figure out whether the disc had closed captioning information just through visual inspection! The other thing that blew my mind about Laserdisc is that it's effectively an analog medium! It still works by either the presence or absence of pits, but their spacing in the time domain isn't discrete. This encodes a composite video signal, which is pretty insane, because it means you then need to de-jitter the signal enough that the chroma & luma can be separated. Most video recording formats use a different chroma modulation schema that's much less susceptible to jitter. Reply
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Reference reading
- https://www.tomshardware.com/pc-components/storage/SPONSORED_LINK_URL
- https://www.tomshardware.com/pc-components/storage/microscopes-can-clearly-see-the-video-on-the-surface-of-a-laserdisc-discovers-techtuber-a-12-inch-vinyl-like-disc-that-stores-sd-analog-video#main
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