Ever CDA CD-R to OGG Backup can convert audio between popular audio files such as MP3, AAC, AC3, AMR, M4A, OGG and WAV. It provides an easy and completed way to convert MP3 to AAC, AC3 to AAC, AMR to MP3, etc. Ever CDA CD-R to OGG Backup supported Batch conversion and you can convert more files within one time. Ever CDA CD-R to OGG Backup is a necessary audio tool for most music lovers. Convert between popular audio files such as MP3, AAC, AC3, AMR, M4A, OGG and WAV. The audio converter supports batch conversion. It supports audio format of uncompressed WAV PCM,compressed WAV (ADPCM, GSM, DSP and others),MP2 (MPEG 1/2 Layer-2),MP3 (MPEG 1/2 Layer-3),VOX (Dialogic ADPCM),WMA (Windows Media Audio 9),RAW audio (PCM, A-LAW, U-LAW),MPC (MusicPack),AVI (audio track),Ogg Vorbis (Version 1.0),G.721, G.723, G.726,AIFF (Apple audio format) and AU (UNIX audio format).