what does "[*]" (without the quotes) in music files mean

[pintree3]

At times I see a music file, as it's title, named something like,
We Hate You (Little Girls) [*][Version]
or
Mother Spunk [Live][*]
and I was wondering why place a star within square brackets: what could [*] possibly mean?

thank you

[Mizery_Made]

This may be related to AllMusic. They use "[*]" in the titles to indicate that the track was a bonus track. So if you've done any tagging through them (or other sources that use a similar method), then that could be where they came from/why they're there.

[pintree3]

Thanks for the info.
The thing is, in this particular case at least, what prompted me to finally ask, is that it existed in every single file--which begs the question, Could it actually be an album with only bonus tracks?

thanks again

[nohitter151]

It can mean a lot of things, usually on the album there would be another asterisk somewhere to explain what it means. I've seen it to mean a track that was recorded live, that a track is the censored version (eg. without explicit lyrics), or that the track is the "single" or "radio" version.