A4 Audio CD Studio is a professional audio CD tool. It combines three powerful tools: A4 CD Ripper, A4 CD Burner and A4 Audio Editor. They can convert audio CDs to MP3, OGG or WAV directly and clone audio CD, write .mp3, .wav files or existing play lists (PLS/M3U) on-the-fly as an Audio CD or MP3 CD, visual edit, creat, record, convert audio files and apply various audio effects and filters with audio files.