Analog vs Digital Audio

Analog audio
An analog audio is the one made recording an analog signal, which is a continuous signal that is not created digitally.

Because it is a continuous signal it is an accurate representation of the original sound.

Pros: Cons:
 * It is a true representation of the original sound
 * Analog media tends to wear down with the time
 * If you make a copy it would not be as good as the original

Digital audio
A digital audio is the one made with digital signals. Digital signals are not continuous as they are made by converting an analog signal into a set of values that represent information.

It is not an accurate representation of the source sound but having a high sampling makes posible to create a similar one.

Pros: Cons:
 * You can make exact copies
 * Storage media can reproduce sound indefinitely
 * Some audiophiles state that analog audio does not have fidelity

Which one sounds better
Today technology is so advanced that is almost not diference between analog and digital sound, there is not a true answer of wich one sounds better so at the end it is up to each one perception because it is a subjective matter.