A CD ripper or grabber is a software application that will allow users to extract CD tracks to the computer.
Usually, the extracted files have the CDA file extension, but they can be converted to other more common formats that can be processed by other tools.
Furthermore, most CD rippers will also offer the possibility to choose a filename for the extracted tracks, as well as to specify the album name or track number.
When users want to listen to their files before copying them to the computer, they can use CD rippers for playback.