MPEG-4 Part 14 or MP4 is a digital multimedia container 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.
Some devices advertised as "MP4 Players" are simply MP3 Players that also play AMV video or some other video format, and do not necessarily play the MPEG-4 Part 14 format.

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  1. J

    DMR-BWT735 - why would it support MKV playback via disc, but not MP4?

    Hello According to the manual, the DMR-BWT735 can play back MKV files (AVC [email protected]) via disc, but not MP4 files. Yet, it can play MP4 files (AVC [email protected]) via USB. I'm confused - if the player can decode the latter, why wouldn't it be able to play back the same files from a disc? Thanks! Jamie
  2. J

    Video Editing software for blurring everything that's NOT moving. MP4 format

    As it says in the title, is there (preferably free), some software that can blur everything that is not moving, it seems you can blur moving things easily, lots of youtube help on that, but I cant see how to blur that static part of the video? Imagine a street scene, you have cars moving...
  3. Qliver

    LG OLED C7 not seeing mp4 videos

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  4. D

    3D TV and MP4 3D SBS files

    I own an LG 3D Cinema TV Model 42LA620V from 2013, Not used it for a while. Just before the 2018 World Cup it failed. I did some research and was able to fix it (some LED's had failed, these were replaced), in the meantime my wife went ahead and bought a 4K Panasonic (Not 3D) so that has been...
  5. M

    Best way to play mpg and mp4 videos from usb to hdmi socket on TV ?

    Hi, Wish to allow elderly friend to use his Panasonic flat screen TV to view .mpg and .mp4 as well as photos .jpg on that tv that I provide on a usb stick, TV does not have usb socket. its a Panasonic TX-L32S20B has hdmi on the side next to SD card slot. I presume I need a device that I plug...
  6. L

    I'm trying to convert some ISO files to MP4 files and carry the orignial subtitles with the new MP4.

    I'm trying to convert some ISO files to MP4 files and carry the orignial subtitles with the new MP4. I've tried this using DVDFab products, Wondershare products, and Power DVD software and can't make it happen. I wondered if this kind of forum is the place to get some help with this.
  7. Chilli Ian

    Problem playing mp4 presentation on LG 29MT45D

    Hi all, I'm not sure if this is the right place to ask, but neither of the 2 bits of software I'm going to refer to appear to have a useful user forum... I put together a presentation using Canva, that I want to run on a loop on an old LG 29MT45D. I saved the file as an mp4, which played just...
  8. T

    Converting DVDs to MP4 via barcode

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  9. L

    Speeding up MP4 video

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  10. Scamperoo

    Recommendations for software to add sbtitles to and M4p then cut it into chapters and export it to mp4

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  11. R

    Recover partially written MP4 from action camera SD card

    Hi I was in a road collision earlier in the week and my camera was thrown across the road causing an abrupt power off (battery dislodged). The cam was recording files 3minute in length. I have intact MOV files on the SD card up to 2 mins before the crash - and although the one covering the...
  12. B

    DVD player that plays MP4 from USB?

    l want to get a DVD player that plays MP4 videos on a USB flash drive. Most models l've done research on do not support MP4. Some state support for MPEG4. ls that the same as MP4?
  13. G

    Playing MP4 files via USB HDD on Sony KE48A9 TV

    Hello everyone! I'd be grateful for some help please. I have a Sony KE-48A9BU Android TV on which I’m trying to play MP4 files from a USB HDD. I have found that although the picture and sound quality are good, they are slightly out of sync (the audio is slightly delayed). I am using a WD 80gb...
  14. pulla

    Panasonic Camcorder HC-V777 - Error occured when using MP4 as record format

    I have above camcorder with a 200 GB SDXC inserted. When I record movies as MP4 after about ~ 20 minutes the recording is interruped with an error. At that time the file has a size of ~4GB. Then the camcorder powers off. When I turn it on again a "control data error" is displayed followed by...
  15. quirico

    Flixgrab mp4 files audio problem in DUNE HD Base 3.0

    Hi. I am a former customer of Dune. I own two Dune HD Base 3.0. Since I bought them I never had any problems with them. Only in one of them I had a hardware failure (power supply) in 2013. Fixed thanks to the help of Dune technical support. All video files have always played smoothly. Until...
  16. S

    Accessing MP4 files in Movie app/folder on Gen 3 iPad

    Hi All, I'm hoping someone might be able to help. I've got my fingers crossed that it's something really simple that I've overlooked. I have some home movies on my old iPad that have somehow ended up in the Movie app/folder. Stupidly these are the only copies of the home movies that I have...
  17. S

    Yamaha rx-v585 and mp4

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  18. DoogyDawg

    (Sorry didn't have a clue where to post) convert to MP4 or MP4 (H264)

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  19. D

    Panasonic UB820 - Accessing mp4 video files from DVD disc

    Hello, I've searched all over the internet but can't seem to find an answer. I'd like to burn some videos onto a DVD without converting the file format for playback on the UB820. The UB820 recognizes the files without any problem from a USB stick but won't read the DVD unless it's a specific...
  20. N

    Having a nightmare trying to play .mkv and .mp4 video files

    Hi, firstly my equipment: Philips 42pfl7666t12 Panasonic dmp-bdt110 Humax hdr fox t2 it's old stuff I know but works fine, until I tried to play an mkv file from a usb stick (Toshiba 64Gb). Basically, I cannot get .mp4 or .mkv files to play on any of this equipment, despite their specs...
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