Overcast - Video-first asset management for teams
VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
Zencastr - High Fidelity Podcasting
foobar2000 - An advanced freeware audio player for the Windows platform.
Fusebox - A powerful wordpress podcast player
Winamp - Winamp is a media player that allows users to play multiple-file formats, arrange media in a varied file-management system, and play unique media with AAC encoding.