What are some alternatives?
When comparing RealPlayer and Offliner, you can also consider the following products
MPC-HC - MPC-HC, the free, open source media player for Windows. DownloadsNote. Supported Operating Systems: Windows® XP SP3 .
GNOME Twitch - Enjoy Twitch on your GNU/Linux desktop
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.
ClipGrab - A friendly downloader for YouTube and other sites
Clementine - Clementine is a cross-platform free and open source music player and library organizer based on...
Streamlink - Streamlink is a fork of the discontinued livestreamer project.