Do magnetizing tracks help or placebo effect?

For the fun of it I have played the XlO Test and Burn in disc demagnetizing track and I find it has definitely improved the sound of my system. I don’t know if this disc really works or if it’s the placebo effect but I am getting significantly better sound after playing the two one minute demagnetizing tracks. I guess whatever works… Does anyone else find improvement with these demagnetizing tracks?

Yes, I usually default to Ayre’s “Irrational but Efficacious!”
Isotek also has a good one. I tend to give one a play-through when breaking in a new component or cable. Things tend to sound more open after a playthrough.

Similarly, I also use an industrial demagnetizer for cables. This has a more powerful effect, but of course you can’t use it on components.