MPEG-3

This page answers common questions about MPEG-3, an experimental video compression standard originally considered by the Moving Picture Experts Group (MPEG).

The first thing to emphasize is that MPEG-3 was never officially finalized into an audio or video coding standard.

It is an experimental video compression standard, which was originally intended to be a standard for HDTV. However, during its development, the MPEG realized that the MPEG-2 coding standard was flexible enough to handle HD video needs. As a result, MPEG-3 was abandoned and has no practical use or implementation in media today.

No, they are different. The MP3 (MPEG-1 Audio Layer 3) format is associated with the MPEG-1 standard, not MPEG-3.

No. Since MPEG-3 was never released as a standard, there are no official MPEG-3 files or any widely used format associated with the term.

MPEG 3 was initially developed for High-Definition Television (HDTV), but was later abandoned because MPEG-2 met the requirements. And “MPEG-3 was rolled into MPEG-2.” (source: https://en.wikipedia.org/wiki/MPEG-3)