Beti George yn holi Irfon Williams o Fangor wrth iddo frwydro'n erbyn canser ac ymgyrchu er mwyn helpu eraill. Beti George interviews cancer patient and campaigner Irfon Williams.
Available Podcasts from Beti a'i Phobol
We are not the BBC, we only list available podcasts. To find out more about the programme including episodes available on BBC iPlayer, go to the Beti a'i Phobol webpage.