Do you download videos from Google Video or YouTube? I do. But, they will be in FLV (Flash Video) format. You might have read my post “Online YouTube Video Downloader”. It’s a way to get the direct download link for YouTube videos. Google Video offers download option for some files (Google Video Player compatible). Use VideoDownloader extension for Firefox to get the download link for Google videos. Both ways, you will get only FLV files.
Here comes the problem. If you want to watch that movie in Windows Media Player, you have to convert it to MPEG or AVI format. Though there are variety of commercial versions of software, I use FFmpeg, an open source free software. You have to download FFmpeg window binaries along with a GUI front end to convert it. It is somewhat time consuming and I will explain about converting FLV files to other media formats in another post.
I have tested freely available FLV players and Wimpy FLV Player seems to be the best one. There is no need of installation. It is a 2.44MB stand alone player. It also supports drag and drop. It is available for both Mac and Windows.
Download it here: http://www.wimpyplayer.com/products/wimpy_standalone_flv_player.html