MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. Like most modern container formats, it allows streaming over the Internet. The only official filename extension for MPEG-4 Part 14 files is .mp4, but many have other extensions, most commonly .m4a and .m4p. M4A (audio only) is often compressed using AAC encoding (lossy), but can also be in Apple Lossless format. M4P is a protected format which employs DRM technology to restrict copying. MPEG-4 Part 14 (formally ISO/IEC 14496-14:2003) is a standard specified as a part of MPEG-4.
Posts about Mp4
  • 3 Ways to Optimize Videos for Mobile Devices [Creators Tip #161]

    … clickable. You can have an awesome video that's delivered in the right format, but if your CTA is too small for people to click then you will lose out on potential conversions. Are you implementing best practices for video playback on mobile? Let other creators know what is working for you in the comments below. …

    Carla Marshall/ ReelSEOin YouTube- 20 readers -