iPod Revolution Is in Store for Music

What is truly significant about the iPod is not its appearance and style, but that it represents the creation of a portable device that, in theory and in practice, can store and play all music ever recorded (“King of Music Players,” Nov. 25).

This has profound implications for the music industry and those industries that produce other types of music players.

For instance, iPod technology has made the CD format obsolete. CD players, in turn, also are obsolete.

In fact, the current business model of the music industry itself has been made obsolete by the digital music format and the accompanying digital music players, such as the iPod.

David Holmes

Woodland Hills