What Does CD Ripper Mean?

A CD ripper is a program that takes the tracks on an audio CD and converts them to another audio format, such as WAV, MP3, AAC or Ogg Vorbis. This allows the tracks to be played on a computer or audio device without having the disc present.

Techopedia Explains CD Ripper

A CD ripper copies the audio portion of a CD and converts it to a format that can be used with an audio program or portable device, such as an MP3 player or smartphone. It may be a component of a music player program, as with iTunes, or it may be a separate component, such as FreeRIP. A CD ripper is normally used when a user wants to listen to a CD on a device such as a smartphone or portable audio device and does not want to buy an album again from an online music store. In some cases, a release might not be available on online music stores at all.