Mobile Fidelity Sound Lab - Original Master Record Inner Sleeves (50pk) - MOFI MFSL

I bought these a year ago January via Amazon as part of a larger order of items as I needed some decent album liners to replace worn out paper ones that come with most LP's and knew they were of quality.What I like about them is simply the fact that there is rice paper in between sheets of the poly on the back side to provide support/structure to the sleeves so they can be inserted into the album covers much easier. They don't leave anything on the LP's nor do they produce static as I do not get any additional static or pops/clicks from using them on my LP's but then again, I don't live where it's excessively dry during the winter months so that helps. Overall they have been great in day to day use and will happily buy more when the time comes.Since I had originally purchased the original package in 2016, I find these still a pleasure to use and fit the LP inside their outer covers just fine. The one thing I'd change is rounding the corners, especially the bottom ones so they can insert into the jackets a bit easier. Otherwise, they bunch up in the corner but DO protect the LP's from swirl marks (or any additional ones if the LP is a used purchase and has some swirls already). Any new LP that comes in a paper sleeve also gets one of these to protect it as I play the album, taking it out of the jacket to play.LP's fit nicely inside and the rice paper insert does make the otherwise very flimsy poly inner sleeves easier to handle to insert/slide out the record and to insert into their outer jackets.So far they have held up well, not split or anything else and had finally used up the original pack a while ago and finally got around to buying another pack of these MOFI sleeves as I've purchased additional LP's and some older albums I've had for a good while are now in dire need of new inner sleeves so without hesitation, bought a fresh pack of these and they have arrived literally in 2 days from purchase.All in all, still recommend these if you desire to protect your LP's from daily use.

I've never had a problem with these sleeves. They always keep my vinyl looking as good as they day I purchased them. Better than paper!

I love these for my collection. They are consistently great quality.

This is a great product. These are the same sleeves used by the National Archives, so you know that these are effective in preserving your records. They do exactly what they claim: anti-static, non-scratching. When I pull a record out of one of these sleeves, I rarely every get static (when I do, it is very minor). These sleeves just fit to the record perfectly; it is somewhat difficult to understand it through words without having a firsthand visual demonstration. I am new to collecting records, and therefore may not be qualified to speak on this, but so far it seems as if these sleeves help to prevent that ring forming on the album cover itself, which is caused by the record pressing on the cover over time. Since these sleeves fit so well to the record, it seems to be doing a very good job at preventing the record from poking out and creating that ring.I have owned these sleeves for about 4 months now, and none of them have ripped or become damaged in any way, and will protect any sort of record, even the bulky 180g. NOTE: these are for 12 inch records, although I do have a 7" in one because I do not own any smaller types of sleeves. It still does its job effectively for the smaller record.If you are serious about protecting your records, invest in this product. Obviously, buy a bigger amount if you have a ton of records. I will definitely buy this again when I run out of sleeves. I won't even bother looking elsewhere, these sleeves are that good.

A valid question is: why should I bother replacing the inner sleeves on my records? The most extreme example of "why?" that I have experienced: I recently found a sealed original pressing of Ozawa's "The Rite of Spring" on RCA, 1968. I paid a bit of a premium for it since it was still sealed, opened it, and found that the original RCA plastic lined inner sleeve had chemically reacted with the record surface, permanently damaging the record, which was otherwise pristine and factory fresh. One supposes that in 1968 that RCA thought this inner sleeve was a premium product, however time has proved it otherwise. I, along with many thousands of other people out there, have been using these MoFi sleeves for at least 10 years without any notable issues. Paper, and cardboard, factory-provided inner sleeves can scar, scuff, and scratch the surface of the vinyl as the record is being pulled out; note how often descriptions of used records being sold include the phrases "paper scuffs" and "hairlines" due to this fact. These MoFi sleeves are designed to minimize that sort of destruction, and as far as anybody can tell at this point, also designed to be archival and not react with the surface of the vinyl.All the new vinyl that comes through here gets a wet vacuuming with the Opera Consonance record cleaning machine, using several varieties of Audio Intelligent record cleaning fluids, and then the original inner sleeves are replaced with these. I am also slowly replacing the inner sleeves on thousands of other records with the Mobile Fidelity sleeves. I've gone through quite a number of packages of these inner sleeves over the last 10 years with no problems, other than the fact they can be a little frustrating in use, i.e. the softness and slickness of the materials used can require a bit more extra effort to separate and insert the records. The sleeves are about a dollar each after shipping, but if you're serious about preserving your vinyl, they are pretty much the best option out there. I have noticed some off-brand knockoffs out there in a lower price range, but since I have many years experience with this product, I think it's probably worth the extra money to stick with the brand name. If you're going to go through the trouble of trying to preserve your records, you may as well spend the extra money. I consider myself more of a record listener than a record collector, but I would still like to preserve these items in the best possible condition for the longest time.

Great product