Biography
This is still Pink Floyd. The (ROIO)-part means that it is either a demo, live recording, remix or in other way unreleased stuff.
From Wikipedia:
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The alternate term ROIO or RoIO, an acronym meaning "Record of Indeterminate Origin", or "Record of Illegitimate Origin", arose among Pink Floyd collectors trying to clarify the differences between counterfeits, pirate copies, live bootlegs, and "ROIOs", meaning recordings whose legal status was difficult or even impossible to determine. The term has spread beyond Pink Floyd fans but its recognition and usage depends largely on the individual community. It is also sometimes used to denote a Pink Floyd recording of any kind.
http://en.wikipedia.org/wiki/ROIO & http://www.pf-roio.de/
Biography text from Last.fm, available under CC BY-SA.