Top critical review
23 people found this helpful
Nice and smooth, but... what's this very fine substance on them?
on August 27, 2012
These Mobile Fidelity sleeves work great - they smoothly accept the LP, and I haven't really had any trouble with fitting them inside the LP jackets. You just have to go slow. And there is no static when the LP goes in or out of the sleeve. They are sturdy, so I have no fear that the LP will poke out of the sides, like they tend to do with paper sleeves.
However, I do have one curious issue with these sleeves. After I got about halfway through one package, I noticed my fingers felt kind of smooth. I took a closer look at one of the sleeves, and saw what looked like a very, very fine layer of dust covering the entire sleeve. It is definitely not regular household dust. "Dust" may not even be the best word for it. The substance on the sleeve was more like an extremely fine talcum powder. It's so fine in fact, that at first I thought it was just condensation from sweaty hands, but that was not it. I had a fresh second package, so I opened that up and saw the same fine substance. Next I went back to the LPs I had already placed in the sleeves. Sure enough, it looks like some of the substance has been transferred to the surface of some of the LPs. It must have got there by my simply handling the LP while it was sleeved, to take it in or out of a cardboard jacket.
Does anybody have any idea what that substance might be? Perhaps I got a bad batch of sleeves that slipped through quality control. I've so far found no comments anywhere of anyone experiencing the same thing. I have yet to determine if the substance is harmful to the LP or affects the quality of play. Maybe I'm ignorant of the facts - is this substance part of what makes them anti-static? Or some other by-product of manufacture? I'd really like to know, and I would update my 3-star rating to a higher one, if I get a plausible answer.
UPDATE: I've just compared a new bag from Amazon versus a bag from my local record store. I still found the same substance coating the sleeves from each package, from both sources. I'm going to continue using the ones I have though. So far, I don't think it has a noticeable effect on the LP or on playback. But it is still a little disconcerting.