CDG is an acronym for Compact Disc plus Graphic. Files that contain the .cdg file extension normally store raw image graphics.
The images in CDG files are usually low-resolution graphics that are used with an audio file for a particular track on an audio CD. Karaoke programs commonly use these CDG files to display the lyrics and graphics when the Karaoke program is playing a particular song.
Many people think that CDG files do not store any audio data. This is not the case. The CDG files do contain the audio data for the song that is associated with the file and a user could possibly play the CDA file just as they would any standard audio file. However, a user must use a Karaoke program in order to display the graphics that are included with the file.
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