TCPMP is a free and open source video playing application that's light on system resources and easy-to-use.
Here are some screenshots to illustrate the features and user interface of this application:
Lightweight and easy to use. Screenshot of TCPMP - 600px · 400pxCreate or load already existing playlists. Screenshot of TCPMP - 600px · 400pxConfigure video and audio options. Screenshot of TCPMP - 600px · 400px