Gates agreed with the whippersnappers' concerns that DRM "causes too much pain for legitmate buyers".
He admitted there are "huge problems with DRM, a Techcruncher reports.
He said there was nothing out there which was simple or inter-operative enough to thrown at ordinary punters.
Gate's firm is one of the biggest exponents of DRM, which is used to protect music and video files on its Zune store.= and everything.
Michael Arrington, of Techcrunch.com, said that Bill told the meeting that punters wanting to transfer songs from one system to another should to "buy a CD and rip it".
The Beeb quoted Suw, charman, of the Open Rights Group, who pointed out it was a "bit rich of Bill Gates to make his comments given how much DRM is stuffed into Windows Vista". ยต