always tended to have the largest available line of blank cassettes
ever. I believe they had the most Normal Bias cassettes available
on the open market. Maxell may have had the name number, but
it wasn't as widely available. In the early 90's, TDK had an
extensive line with having 12 tapes, not including the Pro
line. Still, TDK was at the top of the cassette food chain
along with Maxell, and still has the best selling Normal Bias
tape of all-time: D, which has been there from the start. TDK
was the last cassette manufacturer to have a widely available
Metal Bias tape in MA.
production line of CD-R's are the best ever, they rank as
one of the top 3, along with 3M/Imation and Memorex. As
for tapes, they continue to make the best, but TDK may
never ever stop production anyway. They are just to world
reknowned in that field, and the demand for their quality
Check out the TDK
had such an extensive line, there are bound to be tapes
you have never seen before. On these pages, there are
tapes that have been discontinued, older models, and so
on, with brief histories about each cassette. Some
cassettes even have their own page on this site!
below tapes are listed by Bias. Each page lists each
cassette in that Bias plus most will have a summary about
it. Some of the cassettes have their own page on The BTG.
The BTG Tribute to TDK's AD
had a really awesome and affordable cassette in the 80's
known as AD. Come see how the AD evolved and how it fared
with the other cassettes. Also see how it looked over the
years. In my opinion, AD is one of the best cassettes
has an extensive Pro line in all of the history of tapes.
The AM, SM and SM-X are derived from professional
versions of D, SA and SA-X respectively, with the only
major difference is that the Pro line is made in Japan.
The Pro line is about 10 to 15% more expensive than it's
Also, TDK had discontinued their highest
quality cassettes: SA-X and MA due mainly to lack of
sales and the push for digital media.
TDK is also very headstrong into the DVD
and Blu-Ray market and a lot of their marketing is
in those formats. TDK is not expected to drop anything
major soon, but the focus is a bit redirected right now.
on this page are borrowed directly from the official US
TDK site. They are the sole right of TDK, and in no way
are these pictures intended to be abused or utilized for
profit. All information within this section is for
research and informational use only. Illegal use is
strictly prohibited. Specs for each tape can be found at TDK's US website.
Email me at firstname.lastname@example.org if you have
questions, comments, or something you would like to