VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
Hourglass - Hourglass is the most advanced simple countdown timer for Windows.
foobar2000 - An advanced freeware audio player for the Windows platform.
Free Countdown Timer - Free Countdown Timer is a free, full-featured and user-friendly countdown timer for Windows
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.
SnapTimer - SnapTimer is a simple, free, portable countdown timer for Windows.