Get Help & Advice on Installing & Using Karaoke Software by Power Karaoke

i recently bought power player and recorder but cant change keys of songs i download mianly kar and midi files and cdg files why does the key changer not work when you say on your site qo# Play CD+G discs directly from your CD-ROM drive and CD+G songs (MP3+G and ZIP) from the hard disc # Play MIDI K...