Download and install the UkeySoft Screen Recorder on your Mac computer, then aunch the program. To record audio from Netflix, please choose “Audio Only” function. Step 2. Set System Audio & Microphone. To record audio from Netflix only, please choose “System Audio” under the Sound icon. Step 3. Step 2. Play MP4 files on Mac in QuickTime Player by using one of the following ways. Drag and drop the MP4 file to QuickTime Player to play. Double-click the MP4 file in the Finder on Mac, and QuickTime will open it. Click File on the top bar menu and choose Open File, then select a MP4 file on your Mac, and click Open. Free Download. For Windows 11/10/8/7 64-bit. Get 20% OFF Now. Works On: With HitPaw Video Converter installed on your PC, users can download videos from over 10,000 websites, convert audio/video into multiple formats, as well as edit the converted or downloaded files. Explore More. Online Video Converter A free web app that converts video files, allowing you to change the video format, resolution or size right in your browser. Upload files of up to 4 GB You can search by the name of the format, or by the filename extension, which is the letters shown at the end of the file's name, such as .avi, .wmv, or .mkv. On Mac, you might be able to identify the format by selecting the file in the Finder, then pressing Command-I to open an Info window. The format might appear after the label Kind, such as Step 3: Select the file in iTunes, and click File > Create New Version > Create Mp3 version to turn Mp4 to Mp3; Step 4: Once the conversion is completed, press Command & space bar to search for the new audio file. Record Audio from MP4 for Free with AWZ Screen Recorder. 3. Audacity. Step 1. Download it. Click "File" > "Open" to import the MKV file to this program. Step 2. Select MP4 from the "Video" drop-down menu. Step 3. There is a sub-window within the MKV file territory. Click "Play" from it. Then, you get the converted MP4 with it. 3X6m8FT.