This video might be more helpful from a perspective view. I found it hard to make any sense of it with everything flipped around and backwards. It would also help if the video had a slow-mo part during the wrap. I guess I'm spacially retarded.

this is an old video from back in the day. it might be time to update it. I've wrapped plenty of stage cable in my day, so maybe we can have a cable wrapping technique extravaganza.

Reader,
I found the aspect that the instructor was wearing black clothing, standing much of the time in front of a black drop/curtain, coiling a black cable, and presenting in poor lighting left my viewing the video a waste of time. Little visual benefit was obtained from the video for me. I also found the spoken comments to not help much eather. I recommend spending your time searching for other online information on this topic. Steven

The math is, for each turn of the wrap of a cable you introduce a half-turn diagonally on the cable.

You add more wraps to that one side of your spool (that's what Dan did, always adding from his right side if you couldn't see). This is also true if you're wrapping some heavy cable on the floor.

Now, do you continue to wrap with the 1/2 twist the same way (round and round), or do you alternate wrapping it to the same side with the 1/2 diagonal twist going the other way?

I agree, this would be easier to see with a white cable over a black background or just the opposite.

Good job Dan but you did not show clearly enough how the loops are just a consequence of diagonal twists that alternate or go round and round.

Dan's normal wrap is round and round and his cables were not "trained for" over/under as the reverse can also be true. There's friction in either way of turning, the difference is do maintain the same radial twist or do you "store up" opposing 1/2 twists that will cancel and be a pay-off for the professional unwrapper.

I am EXTREMELY picky about how wires are wrapped, I'm in that "live sound and broadway" category, and "Over/Under" is the only way for me. Others I might work for would request "round and round" and that's what I do for them.

Over/Under is great for setting up fast. But it has a real downside that screws the uninitiated. This video didn't show you a way that Over/Under can be unwrapped deadly wrong. Here's how it happens:

Someone takes one connector end of the wrap and allows it to go through the hole and unwraps the cable by that end and attempts to get the whole cable to go through the hole making one knot every other unwrapped turn - doesn't seem like much until it happens to you and you learn to STOP and think and undo.

For short cables under 6 feet, guitar cables and such just go round and round. Dan's cables were about 35 feet and for him he had the time. Good for him, maybe for you too and easy to learn, unwrap with care every time as Dan shows it and you're 100% good.

If your wrapping 350 feet of 60ch snake with a 1.5 inch diameter taped with 240volt 12gauge and three video lines and cat6, then you can wrap that either way you want, but with round and round, you've introduced 50 diagonal twists per load-out, and soon that will involve a lot of untwisting at one end - and my opinion is Over/Under solves that for professionals.

So for musicians, most cables wrap round and round for you, but please understand professional audio wire wrapping is often more complicated and serious than it appears.

If a soundman asks you to stop wrapping his cables it's not really about you - he knows you're a good person, that's why he doesn't want to be upset with you - trust me.

Guitar cord, MIDI, video, audio cables under 15ft
Round&Round

Snakes, Large power, all audio cable over 30 feet
Over/Under

240v single 4wire or three phase 208v single 5wire
Figure "8" (over/under open-faced)

My personal version for all over/under:
To put round and round on the last 3 wraps on both ends, that way no one will unwrap wrong and pull out those deadly knots.

Best wishes

For the record, the idea that wrapping cables over/under is more stressful on the solder joints is not only without foundation, it is exactly the opposite of the case. Wrapping in a standard overhand coil forces one side of the cable to always be on the outside radius, and the other to be on the inside. Over long cable runs, this causes a great deal of tension on the outer edge, and compression on the other. Over time, this leads to frayed wires and shielding inside the cable, and broken solder joints on the ends. This is made worse by the constant internal twisting inherent in this method of wrapping.
As wrapping this way causes the cable to bias in the coiled direction, the cable tends to always coil in this way, stressing the same sides every time the cable is coiled.
The main way to eliminate this is to over/under wrap the cable.

In short, there is no legitimate benefit to wrapping cable in the over hand or underhand only method, except for the few seconds it may save you on tear down, contrary to the claims in this video.

I'm surprised that you professional folks created a video where a guy dressed in black standing in front of a black background is wrapping a black cable. Huh? Did you folks think of what you were doing before making the video?

It's very hard to see the wrapping.