Use BBC.com or the new BBC App to listen to BBC podcasts, Radio 4 and the World Service outside the UK.

Find out how to listen to other BBC stations

Radio Cymru,19 mins

M Wynn Thomas - Gwestai Penblwydd

Dewi Llwyd ar Fore Sul

Available for over a year

Yr ysgolhaig a'r awdur, yr Athro M Wynn Thomas oedd gwestai penblwydd y bore

Programme Website