These decisions are excellent for those with a bit more knowledge, but it's far from necessary, as standard options offer decent quality. The Advanced options lets you choose settings for video size, quality, aspect, and codecs. The alternatives include two high-quality options, a standard rate, economy mode for light files, and optimal quality. The Standard setting involves five preset quality/size options. You'll find two levels available, either standard and advanced. When you open the programme, the main screen will show you where to add the files or conversion. If you want to do that, you can try Zamzar, for example.

You can't reverse the operation or use other forms. The only action you can take is to turn MP4 files into the MP3 format.

Because both file elements are compressed, MP4s normally have a smaller file size than many other video formats, but still maintain relatively high quality for sharing online.The purpose of this programme is its only function, too. The video part is usually compressed with MPEG-4, and the audio is usually compressed using AAC, which is the audio format associated with iTunes. MP4 videos are made up of video and audio elements that are compressed separately. MP4 is usually the preferred format for uploading videos to YouTube, Vimeo or other websites. As MP4 is a standardised format, it will normally play easily on most devices and media players, including Windows Media Player, QuickTime, and VLC. It was originally developed by the Moving Picture Experts Group (MPEG) but has become an ISO standard, meaning that it’s now maintained by the International Organisation for Standardization. MP4 was developed to be easily played and shared. MP4, sometimes called MPEG4, is one of the most common video formats.

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