When I saw this Techmoan video a few days ago, I new it was a scam and that the (((inventor))) was a funny hat guy, but the 36 degree angle has some backing to it. Though it doesn't do shit to improve the quality of the audio on the disk, the use of a 36 degree angle is based on the Brewster's Angle for polycarbonate.

Brewster's angle (also known as the polarization angle) is an angle of incidence at which light with a particular polarization is perfectly transmitted through a transparent dielectric surface, with no reflection.

By using the Brewster's Angle for polycarbonate, internally reflected 980 nm laser light from a CD player could exit the outside edge without internal retroreflection. This is sound optical physics, but it does nothing to change the operation of the CD player. Any internally reflected/refracted IR light in the disk medium would not escape at any angle to the IR receiver sensor that could cause it to misread or require error correction because of the refraction index of polycarbonate being rather significant when interfacing to the air surrounding the disk. It's total bullshit scam material, but the Brewster's Angle is actually doing something even though it does not relate to the claimed benefits/

TL;DR: The 36 degrees angle is called the Brewster's Angle. It let's light escape. It doesn't do shit for what is claimed by the (((inventor))). Don't bother with it.

KEK! I'm greatly amused by "audiophiles." They have more money than brains. There was this scam; don't forget the coating the edges of the CD with a colored marker supposedly reduced or eliminated the amount of stray light reflecting of the disc’s edges, producing “better” or “cleaner” sound. KEK. Come on! In an analog format, I might have fallen for that shit. If it were true, the CD pressing plants would have added that to the edge. I love all the "high end", gold plated power cables and gold plated connectors for digital cables. Yea, they looked pretty and all, but did nothing to improve the sound.

Then there's the vinyl record craze. Another amusing audiophile nonsense. Basically, vinyl causes all kinds of distortions (I won't go into now). People just like all the compression and equalizations that must be introduced into the audio chain to produce vinyl so the needle won't jump out of the groove during playback.

Have you read the nonsense that Mobile Fidelity was doing to their vinyl? (audioholics.com) Essentially, they used digital source material while advertising it as original analog tape. Frankly, I don't mind using digital masters because the analog masters age and deteriorate. It makes sense to do that. But, it's fake: a lie. However, this fits in today's fake world.