Learn how to convert a CDA file to MP3 using Windows Media Player. Follow these step-by-step instructions to easily convert your audio files. Open the FLV Converter. Click on the folder icon next to Select the video file to add files. Choose our FLV file then click on Open. On Convert Video to, choose MP4. Alternatively, there are You can open your MP4 file in most media players, including Windows Media Player, Apple QuickTime Player, VideoLAN VLC Media Player and MPlayer. If you’re struggling to open your MP4 file, you can simply use Zamzar’s converter tool to convert it to a different video format. Step 1. Open the MP4 file that you want to convert to Windows Media Player. To open the file just go to the File menu and then click the Open button on the window that will be displayed. Double click the MP4 file, and select open with Windows Media Player. Step 2. The MP4 file will play by default. Not in Windows Media Player. I suggest you download the free VLC Media Player it has a Convert Option under the "Media" controls setting. Get the 32 Bit versionit will work on a 32 OR 64 bit Computer and their 64 Bit version has some issues. Click on File > Open…. In the Open dialog that appears, navigate to the location on your computer the MP4 file you want to convert into an MP3 file is located in, locate the MP4 file and click on it to select it, and click on Open to have it opened in Windows Media Player . Method 2: Convert MP4 Videos Using Windows Media Player. Suppose you cannot find suitable codecs to play your MP4 files on Windows Media Player (WMP). In that case, you have the option to convert the MP4 video file to a format that is compatible with WMP. You can achieve this using the free VLC media player to convert video files. Click Add File tab to put MP4 files that will not play on Windows Media Player. Click Profile drop-down, and choose WMV - Windows Media Video (*.wmv). Click Settings button next to Profile field to configure the parameters of the output video, such as video codec, audio codec, bitrate, resolution, etc. Then, click OK. N9nQI.