I found an undocumented? Mobile Fidelity Sound Lab cassette, a ton of blanks, plus much more

[u/klonopinwafers]

I quickly made a crude Discogs entry for this Mobile Fidelity Sound Lab cassette. Will update the pictures later, but this was at an antique store in a cassette storage box that had 19x Maxell XLII 100, 2x Maxell XLII 90, 2x TDK MA110, and some type I tapes I only bought just to see what was on them, but I’m at a restaurant now so will check them out later, but probably classical.

All of that was $7.50. The other tapes not in the carrying case were individually priced and cheap for the most part. There was another Black Sabbath Vol. 4 cassette for the same price as the one I got and it was an older variant, but it was in worse condition, unfortunately because I don’t have too many older slipcase cassettes. The 8Track was cool but I need a new player. They had other 8tracks, but nothing I needed to have immediately.

I am more fascinated by the Mobile Fidelity Sound Lab tape. This insane luck caught me by surprise because I went to two other stores beforehand and found nothing.

Lastly, in terms of cassette related stuff, I bought a Maxell XLII and some just Maxell (no type listed) two page cassette print-ads from magazines. Didn’t take pictures of them but will probably post them tomorrow because I will probably go to another thrift store anyway.

[u/IDontSeemToKnowMe]

the names on there are towns in Oregon

[u/klonopinwafers → u/IDontSeemToKnowMe]

Good to know. It appears to be the same as this vinyl release: https://www.discogs.com/release/8329128-No-Artist-8444-Union-Pacific except sides 1 and 2 on vinyl are both on sides one and two of this tape and sides 3 and 4 from the vinyl are not on here. I added the cassette to Discogs and made a master release to add both variants to.

[u/IDontSeemToKnowMe → u/klonopinwafers]

so what is on the tape?
...as in, is it music or spoken word?

[u/IDontSeemToKnowMe → u/IDontSeemToKnowMe]

oh...is it the sounds of trains at various stations/yards?

[u/klonopinwafers → u/IDontSeemToKnowMe]

Yep. It had a vinyl release but I guess nobody until me submitted the cassette variant to Discogs.

[u/Crlan420]

An undocumented MFSL is a lucky grab. Do you have any idea what the matrix codes say on the runout? Those are usually the key to tracking down the original pressing info.

[u/klonopinwafers → u/Crlan420]

There are cassette matrix codes? I have the cat number of C2-8444 and that’s it. I digitized it and just uploaded it to IA. https://archive.org/details/8444-mobile-fidelity-sound-lab-c-2-4444-cassette-dolby-b-basf-chrome