MuseScore
Music notation program that offers a free alternative to professional programs such as Sibelius and Finale
Audio editor based on Cool Edit Pro. Adobe has disabled the activation server for CS2 products, because Adobe no longer supports them.
Multimedia player for various audio and video formats as well as DVDs, VCDs, Quicktime, Real and various streaming protocols. VLC now has Chromecast support!
Free YouTube Downloader downloads online videos onto your hard drive if you want to view a video offline or convert it into a format that can be stored on a mobile device.
Kodi (formerly known as XBMC Media Center) is an easy to use media center application for all your media, with a slick interface.
Versatile media player which can cover various types of audio and (HD) video formats.
Windows version of the well known multimedia player for music, movies, TV shows, and more.
Any Audio Converter can extract audio from all popular video formats and online videos, and convert unprotected audio files to a wide range of formats.