iCoolsoft M4R Converter

This professional M4R converter can convert almost all video and audio files to M4R format, supporting AVI, WMV, ASF, MPEG, MOV, RMVB, FLV, MP4, 3GP, H.264, MKV, MP3, AAC, AC3, AIFF, AMR, AU, FLAC, M4A, MP2, OGG, MKA, WAV, WMA, and so on. M4R to other popular audio formats converting is also supported.You can split the source file to get your segment, merge multiple files for output, select the output format and adjust the sound quality