Agree Free MP3 to M4A AAC Converter - Version 5.1 Agree Free MP3 to M4A AAC Converter is an excellent audio converter which can help you convert MP3 to popular audio formats including AAC, AC3, and M4A audio formats.But it only finish one file once.All conversion process like MP3 to AAC, MP3 to AC3, and MP3 to M4A is fast and simple. Agree MP3 to M4A AAC Converter can help finish your audio conversion work with friendly interface and good output quality. It provides optimized default setting, just a click to start music conversion. With variable settings and fast converting speed, it is an affordable and excellent audio conversion tool.