KaraokeMania Discs are available in two formats, professional CDG format and DVD.
You can buy KaraokeMania discs in the MundoKaraoke store or website:

Digital Format :
You can find all KaraokeMania tracks in various formats on the very best online karaoke download page : Download Karaoke Here
Digital formats available are : MP4 , AVI / Xvid and MP3 + G. Want to know more about digital formats? Learn Here