Hidden track on Reunion Tracks album

[Obsidian Fire]

I was looking up track lists on different Final Fantasy 7 albums and it turns out there is a "hidden track" on the Reunion Tracks album. In order to hear it, you need to rewind from Track 1. It's an instrumental version of One-Winged Angel, but without the choir part.

 

[Geostigma]

Damn a hidden track.

I havent run into one of those in atleast a decade o.o