MPEG and OGG explained
MPEG-1 and MPEG-2 program streams are the formats behind Video CDs and DVDs. They are decades old and very inefficient by modern standards.
OGG here means Ogg Vorbis, a royalty-free lossy codec that predates Opus. It is competitive with AAC and remains common in games.
- Where MPEG files come from
- DVD rips, old camcorders and broadcast archives.
- Where OGG is used
- Game audio, Spotify's older streams and open-source projects.