What seems to be currently manufactured is TDK SA, TDK SM (same tape different cassette housing), Maxell XLII, and the Radio Shack stuff. That applies to the USA, I am sure that more is available elsewhere, here if it is not a billion dollar a year business the corporations just drop the product .
Well, if any of you guys in the USA are finding stuff like this you can count yourself lucky. Japanese manufacturers have ceased supplying any of the tape that enthusiasts have embraced for (in some cases) decades.
First to vanish was metal. The last metal available was about four years ago: Axia (Fuji Industries) K Metal, TDK MA EX type IV and Sony Metal-ES. And then the last of the better Type II tapes quickly disappeared: Sony ES-II, TDK AD-2. The high end products mentioned in this thread had vanished long before those. Incidentally I believe that the ES-II this may have been the last, high quality tape emulsion ever engineered, and it may have come from a video tape of the same name. I met a Sony engineer who had been a project member, and he said the emulsion was excellent.
So, I expect that the US market MAY be the last place you will find stuff that audio dudes are looking for, and I can't think of where it might be currently manufactured. I've tried to find out but to no avail. I suspect that it is all NOS. I suspect that because of America’s penchant for large inventories, there are still cashes of this stuff around. The clock is ticking on that score.
Heck, just buy any high bias tapes you find (Type/Position II, III, and IV tapes),
What I have said above supports Arkay completely. Eventually, and perhaps sooner than later, the only thing you are going to find readily available on the shelves will be Normal Type I. There is a reason and it goes like this:
We'll skip the obvious — and go straight to where the market remains sufficiently buoyant to ensure any production at all in the immediate future. This is in the so-called Third World and developing countries that still use cassette players — parts of Asia including Afghanistan, the Indian subcontinent and perhaps parts of Africa. In some areas of the world, cassette remains a form of oral communication. Illiterate populations living on the margin can pass messages and information using the cassette, not to mention music and entertainment. A lot of the machinery that is used is NOT very sophisticated or sonically discriminatory. High grade, Type II tape is not a requisite. As long as the shell and the emulsion are reasonably resilient, the market is supplied by Normal bias Type I tape.
Also, one brand that isn't mentioned, is the Japanese "That's" brand. Not so well known outside of Japan, they have made some very decent high-bias chrome and metal tape(s) over the years.
This brand is part of the big Japanese chemical complex, and the parent company is “Taiyo Corp”. Most of their stuff seems to be produced in Japan. Their computer archive and backup media under the ‘THAT’S brand is very respected, and I buy it over anything else on the shelves.
NEXT: In my next post, I want to introduce a survival plan based on Hemmlock's original question at the head of the thread. What is the best bang for the buck? Forget hunting up NOS and paying for shipping and previously hoarded stock. Just how good or bad is the stuff we can still conveniently buy? Just how do the current emulsions compare with the old standbys. Can a high-end deck that can be set up to optimally use one of today's more ubiquitous emulsions produce an acceptable recording? We'll never see the likes of Type IV again outside of private sales and trading. But can we live with what happened after CrO2 emulsion?