This multimedia player from Inmatrix uses external DirectShow filters for MP4 files, e.g. 3ivx, mpegable or CoreAAC.

WMP needs external DirectShow filters for AAC/MP4 support like 3ivx, mpegable, CoreAAC or LSX.

Overview and tips for Audiograbber users with a tutorial for AAC/MP4 encoding support through FAAC.

Integrated development system to generate real-time audio effects and synthesizer instruments using SAOL with SoundFont 2 for Structured Audio Score Language (SASL) and MIDI compositions.

Integrated music management application inspired by Apple's iTunes and based on the GStreamer and/or the Xine framework, plays AAC/MP4 through gst-plugin for FAAD2.

Decodes AAC bitstreams (LC and HE) in the RM container, rips CDs to M4A, connects to its music store and is freely available for several platforms.

Hosts several AAC/MP4 encoders and decoders as well as other related tools, see also the section for the Debian Linux distribution.

Since version 6 this Apple multimedia software decodes MP4 files. The basic player is free, the commercial Pro version also encodes MPEG-4 video and AAC as well as 3GP content.

Enables aacPlus (HE AAC) streaming for internet radio stations via HTTP/Shoutcast or RTSP.

DirectShow filter suite from Dicas to decode MP4 and 3GP files or RTP streams of MPEG-4 content, also available as a standalone player application.