MP4 and MP3 are two different formats of data storage types used to store media.
MP4 or MPEG-4 AVC (Advanced Video Coding) is a file format created by the Moving Picture Experts Group (MPEG). It is used to store audio, video, still images, subtitles, and text.
MP3 or MPEG audio Layer-3 is a file format which is also created by the Moving Picture Experts Group (MPEG). It is used to store the files that can only be used for audio.
Difference between MP4 and MP3:
|MP4 is a digital multimedia container format||Mp3 is an audio coding format|
|Extension used is .mp4||Extension used is .mp3|
|MP4 can handle a number of media, such as audio, image, video, text.||MP3 can handle only one type of media, which is an audio file.|
|Devices which are made for MP4 are both audio and video file players.||Devices that are made for MP3 are simply an audio file player.|
|MP4 is a compressing technology with decreasing the quality of audio an d video both.||MP3 is also a compressing technology but without decreasing the quality.|
|MP4 is extended from Apple QuickTime .mov and MPEG-4 Part 12||MP3 is extended from MP2|
|It is new and released in 2003.||It is released in 1994.|