The Petra Zone

That guy may be smoking some really good crack. Impossible.

Cassettes have wow and flutter to deal with, high distortion, hiss, limited frequency response (on mass produced tapes), cassette shell noise, etc.

Recording onto cassette can sound good. Heck, the head gap is about the same as the track head gap on a 2" multi-track recorder. There were about four really good machines that did well. One of them was by Nakamichi, one by Sony, Tandberg and I forget the other. What made these great were the transports they shared, the ability to adjust the azimuth, and calibrate bias circuits. They were as pro and you could buy in home audio.

Mass produced tapes never had full bandwidth, 20Hz to 20kHz because they were not recorded. How does that work? Well, the tape duplicators actually had a copy of a copy of a production master that basically smashed against the tape you listened to. There weren't record heads hitting the tape. You will notice that if you leave your tapes rewound, that you will hear a faint copy of your music playing before it actually plays at full volume. This is called the "pint through effect". It is the same principle. It is for this reason that you should never rewind your tapes and you should never wind them tightly. You may remember the better decks would slow down when FF or RW tape. This is why.

I thought it sounded ridiculous