MP3+G is a karaoke file format that was created to allow CD+G karaoke to be played from a personal computer easily and quickly. MP3+G is considered the de facto standard of karaoke on the PC and was created from the combination of the MP3 audio file (the CD audio is converted and compressed to MP3) and a raw CDG file which contains the RW subchannels from the CD+G track. The name MP3+G was first used by Gai Marcos and Steve Gray in late 1997 or early 1998 to describe the format. It was first called MM+G in early 1996 where it was a combination of various audio formats synchronized to a CDG file. MP3 and WMA became the most popular audio format used for karaoke and therefore MP3+G and WMA+G became the most popular formats used. Microsoft first unofficially adopted the WMA+G for use on the XBox for the XBox karaoke product.
The MP3+G format
MP3+G stands for MP3 plus Graphics. MP3+G is derived from the CD+G format and the CD+G disc format invented by Philips. MP3+G is created by extracting the CD-Audio packets from the CD+G disc with a CD-ROM that is capable of also extracting the RW channels from the disc. The digital audio portion is compressed to MP3 (the MP3...