There was no message, nothing written on either side of the cassette shell.

The cassette shell was also issued with the same color.

The problem was that long-playing cassettes require extra lengths of tape to be stuffed into the fixed and finite dimensions of the cassette shell.

Because the cassette shell has been ultrasonically welded together, it is more rigid than the average cassette, reducing vibration noise.

The original Canadian cassette issue of this album came in a glow-in-the-dark cassette shell.

Notches on top of the cassette shell indicate the type of tape within.

For example, a change in the angular velocity of the capstan, or dragging of the tape within an audio cassette shell.

The three formats are physically very similar, featuring both the same magnetic tape width and near-identical cassette shells, measuring 95 x 62.5 x 15 mm.

It retains the same physical cassette shell as its predecessors, and can even record onto Video8 (not recommended) or Hi8 cassettes.

New lightweight cassette shells keep down mailing costs, and the Postal Service offers sorting services and bulk discounts.