Is "wwwaudiofile" field used by any player/program/service?

Can anyone clarify if the WWWAUDIOFILE field (URL of the actual MP3 file) is read by any major players, programs or services.

I'm thinking about tagging the collection of OC ReMix with the URL each ReMix is located at, e.g.

But (if I remember correctly), this field has fallen out of use for security reasons (e.g. someone embeds a malware URL into that field).

Is there any point at all to using this field? Even if there is no longer, was there any point when this field was read/displayed/used in any notable interface? It seems like no, as far as a simple Google search may indicate:

Thanks for anyone who has any insight!

as i guess you've seen over there, winamp seemingly supports it. maybe this helps too:

so i'm thinking something like %WWW% maybe?