Podcasts and vodcasts are digital media files that are distributed online through syndicated downloads or streams. Podcasts are audio-only and delivered through RSS feeds, while vodcasts are video files that can also be delivered through RSS. Both require a media player and internet connection to access. They provide an accessible way to deliver content but have disadvantages like lack of interaction and potential technical barriers. Recommendations include using them as part of blended learning and ensuring accessible high-speed internet.