We have found 6 software records in our database eligible for .3ga to .mp4 file format conversion.
The 3GA format is the same type of multimedia container as 3GP format, but the "a" at the end of file extension identifies that only audio content is stored inside the container.
If your converter does not support .3ga files directly, you can rename 3ga suffix 3gp and use any multimedia converter to transform 3GA audio to MP4 multimedia container, as 3GP format is well supported.
In any case 3ga to mp4 conversion should be supported in pretty much any multimedia converter nowadays.
3GA
Files with 3ga extension are audio files stored in 3GPP multimedia file format. 3GPP file format was developed for 3G and UMTS mobile networks multimedia services. 3GPP is supported by variety of mobile producers, such as Nokia, Samsung etc. 3GA file extension identifies only audio stream stored in 3GPP multimedia container. Audio stream can use AMR-NB, AMR-WB, AMR-WB+, AAC-LC, HE-AAC v1 or Enhanced aacPlus (HE-AAC v2) audio codecs.
MP4
An mp4 file extension is typically used for MPEG-4 multimedia files defined by ISO 14496-1 standard. Commonly used for video and movie files and supported by vast number of media players.