A .bin file can be any form of data to write to a CDR disc. Goldenhawk uses .bin for the extension on every file they import, whether it is an entire disc image file used to make a duplicate copy, a .wav file from an audio CD (which they store as .bin), or a CD+Graphics+music file imported from a Karaoke CDG disc (which they store as a .bin file). They even use .bin for CDROM data disc images.
Thus, their definition of .bin is VERY BROAD, which can cause confusion in non-technical markets and computer shy users.
MTU first created and used the .cdg extension before any other company started to redefine our definition. MTU .cdg files are the identical format as you will find stored on a Karaoke CDG disc. You can be sure that an MTU .cdg file contains everything you need to play a Karaoke CDG song. There is no worrying about where the matching pair (see below) file is so you won't be embarrised!!!!!
When backing up MTU .cdg files, there is only one file per Karaoke CDG song. You just can not get any simpler than that.
Some other companies create and play illegally distributed MP3+G files. These are composed of a pair of files; one is a .wav (the music audio samples) and the other a .cdg file (holding the R-W codes for the lyrics/graphic data in a CDG song). They are in error as we first used and defined the .cdg format. However, that an $2.50 will get you a cup of Java at Starbucks!!!
Now you know....