To create a cassette tape, you’ll need a blank cassette, a recorder or duplicator, and a source material (such as a vinyl record or CD). Insert the blank tape into the recorder, connect it to the source, and press record. As the source material plays, the recorder transfers the audio signals onto the magnetic tape inside the cassette. Once the recording is complete, you can remove the tape and label it. With the right equipment and techniques, you can create high-quality cassette tapes that capture and preserve your favorite audio content.