Perpetually CD VQF M4P to Sound Backup is designed for the everyday user with amazing audio effects, audio filters and tools for converting audio files into different formats, ripping Audio CD tracks to audio directly, including MP3, WMA, WAV, Ogg Vorbis, VOX, Audio CD Tracks(CDA) and many others. querying Audio CD CDDB information from internet. Supported file formats WAV, MP3 (with external encoder), WMA (export only), AU, RAW and SND.Transform operations: Reverse, invert, move-up/down, move-forward/backward, inter-change channels, channel mix etc.Special Effects: Equalizer, Band Pass/Stop Filter, Noise Reduction, Echo, Reverb, Modulate, Stretch/Shrink, Change Speed.