Copyright term

Berne Convention for the Protection of Literary and Artistic Works - minimum 50 years
- http://www.wipo.int/treaties/en/ip/berne/trtdocs_wo001.html#P127_22000 Article 7 (5) "The term of protection subsequent to the death of the author and the terms provided by paragraphs (2), (3) and (4) shall run from the date of death or of the event referred to in those paragraphs, but such terms shall always be deemed to begin on the first of January of the year following the death or such event."
Agreement on Trade-Related Aspects of Intellectual Property Rights - minimum 50 years
Copyright Duration Directive (93/98/EEC) replaced by Copyright Term Directive (2006/116/EC)
- "(12) In order to establish a high level of protection which at the same time meets the requirements of the internal market and the need to establish a legal environment conducive to the harmonious development of literary and artistic creation in the Community, the term of protection for copyright should be harmonised at 70 years after the death of the author or 70 years after the work is lawfully made available to the public, and for related rights at 50 years after the event which sets the term running." Source: http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:32006L0116:EN:NOT

Sound recording

AR
- Ley 11.723 modified by Ley N° 26.570 B.O. 14/12/2009, Art. 5º bis - transferring recordings from public domain back to protection status, source: http://infoleg.mecon.gov.ar/infolegInternet/anexos/40000-44999/42755/texact.htm

http://www.ifpi.org/content/library/isrc_handbook.pdf : "in the UK in 1988, where expired rights could be resurrected by a term extension"