Re: C90
Ah, the AD90. I got through dozens of the things. Much higher quality than the D90s, and better than the Maxel equivalents (IMHO), but much cheaper than the Psudo-Chrome SA90s. The equalization bias was such that they tended to produce a slightly bright sound on most Hi-Fi, so it was best to use a record deck that did not produce too much surface noise.
I remember splicing an extra 5 minutes on some tapes to record the two sides of some LPs onto the single side of an AD90 (although the TDKs had about 46 minutes of tape as measured on my JVC KD720 HiFi deck). I think one of them was Genesis Wind and Wuthering, and I had Meatloaf's Bat out of Hell on the other side (if any record company is reading, I have since bought both on CD, so you still made a sale!)
In general, most LPs were under 20 minutes a side, so would fit on one side of an unadulterated AD90.
I remember there being a country-wide shortage of AD90s sometime around 1980 because it was the tape of choice for most home-tapers.
I avoided Scotch/3M or BASF tapes, because they shed oxide even when new! And I would not touch unbranded tapes at all, and even good C120 tapes suffered from print-through, and tended to jam even on good tape decks.
Biting the hand that feeds IT
