Interference Bug

Hey,
I'm a DJ. I have a problem when playing tracks on any CDJ/XDJ: Sometimes interference sounds occur in some tracks (just listen here for an example: https://vocaroo.com/i/s0sy8oKSKnEI). 

I could already eliminate a number of potential causes: 1) I bought a new laptop recently, but the problem continues to exist; 2) the interference sounds appear in different tracks (not just in one particular track) and when I listen to the affected tracks on my laptop in rekordbox the tracks themselves are totally fine, so the problem only happens when I put them onto my usb-sticks and play them on a CDJ; 3) the inference happens on all CDJs I play the track from, so it is not a broken CDJ that is causing this; 4) the bugs exist with both of my USB-Sticks, so it is also not one broken USB-Stick

When I delete the 'broken' track from my USB-Stick and load it from rekordbox onto the same USB anew, the interference often disappears. So, the bug seems to come into existence when transferring the tracks onto my USB-Sticks. As far as I can tell, this leaves me with only two possible causes: Either both of my USB-Sticks are broken (or all USB-Sticks of this particular model) or 'Rekordbox' is the problem. In terms of USB-Sticks, I use  the 'Samsung Memory Bar USB Flash Drive Stick 64GB' (see: https://www.amazon.com/dp/B013CCTJKE/ref=twister_B0148N153A?_encoding=UTF8&psc=1). These are just usual USB-sticks used by many other DJs.

So, this situation is really frustrating right now. I basically have to pre-listen - and potentially replace - each track I might wanna play at a gig. And those noisy interference sounds are probably also neither good for the sound-system nor for the listeners' ears.

So what could be behind this annoying problem? I would really appreciate some help!

cheers, Abrecht