To MP4 Converter is a free and powerful software to convert audio files to the MP4 audio format (m4a).
It contains a simple interface, with complete tag editing functions.
Its internal player allows you to compare head to head the original versus encoded audio files, to help you choose the best compression settings for your needs.
Most audio formats are supported, and multiple files can be converted at once.
Simple interface (only one window). No registry entries or configuration files are created in your computer, only the ones to uninstall the software.
Player to compare original versus encoded files.