This sample, obtained from the RuneScape java client, is classified as a Non-free audio. The audio sample used here is subject to Jagex's copyright and is used here under the conditions of Fair use, where:
The sample is being used for commentary on the audio in question.
It contributes significantly to the articles it is used in (listed under the heading "Links" below) in a way that cannot be duplicated by other forms of media.
The sample is short in relation to the duration of the recorded track, and is of an inferior quality to the original audio.
The sample sound effect is very short and unsubstantial ("de minimis").