Over the years, Quintessential Player gained support for playing MP3s and other audio formats, video playback, and an optional media library was added to the player.

This latter addition gave rise to the use of the name Quintessential Media Player, or QMP for short.

as created by a tag editor) to Gracenote's CD database other than iTunes, and was still listed as such even in 2019.

[3] Quintessential Player natively supported: A wide range of audio formats playable via the use of plugins, Audioscrobbler support (also supplied via a plugin) and many more skins allowing the customization of the players interface were obtainable from the Quinnware[4] site.

Quintessential Player also had fully functional Windows profile support and did not require administrator user access to run properly.