12.1 Types of CD
The audio CD, designed in the late 1970s, is now quite an old format. Today, its specification quirks can be quite frustrating. The audio CD was never designed as a filing system and fetching data to bit accuracy is not straightforward. CD-ROM adds the necessary file system information but at the expense of reducing data capacity. Yet, it remains a robust format and has spawned a large number of other formats, including DVD, using the same sized optical disk.
The audio CD is what we would now call a streaming format. It was designed to provide a continuous bit stream to a CD player. It was also designed to allow errors. It is not a filing system, that role is taken by the CD-ROM. This can be confusing if you are ...