foobar2000 - An advanced freeware audio player for the Windows platform.
Kinovea - Kinovea is a video player for sport analysis
VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
PhysMo - PhysMo is an open-source (free!
PlayerPro - PlayerPro is a media Player for Android devices running 2.x. Features :
LongoMatch - Real-time and post-recording sports video analysis software.