The OGG format is a free and open container format for multimedia, commonly used to encapsulate audio data. Within the OGG container, the audio can be encoded using various codecs, with Vorbis being a popular choice for lossy compression. OGG files are known for their efficient compression and high audio quality, making them suitable for streaming and storing music. The format is widely supported across different platforms and applications, providing a versatile solution for audio encoding and playback.