Files with the .MP4 extension contain audio and video streams encoded usually in the MPEG-4 format, but they are supported also by many other formats. It is a container – file, and it may also include metadata, subtitles or images, although it is rarely used for this purpose.
AC3 is an audio file saved in Dolby Digital format. AC3 is a trade name of the A/52 standard. AC3 is used for storing audio tracks on DVDs and encoding DVB digital TV signal. AC3 format supports up to 6 audio channels (the popular 5.1 format).
After converting the file to the new format, you will be able to use other programs to support it. Keep in mind, however, that the MP4 file after converting to AC3 may differ slightly from the original. The most important information should be kept, but if you want the file after conversion from MP4 to AC3 to be the same, you have to do this carefully and choose the proper application from the list below.
There is no guarantee, of course, that the conversion will come up to all your expectations, but it will certainly help you. If, after all, the effect of converting MP4 to AC3 does not meet your expectations, you can simply try to find on the Internet a different version of your file in MP4 format, properly converted to a AC3 file by someone else. If this fails, use the information provided in the further part of the website.
If after converting the file MP4 the desired result was not achieved, you can try to change the format of MP4 file to other than AC3. On our website you will find more information on the following conversion options
Unfortunately, if after performing the two previously described steps (trying to find your MP4 file converted by someone else, and the attempt to convert it to AC3 on your own) you still have a problem with your file, then there are only a few solutions left. You can once again try to find and install an application that can open the MP4 file in its original format (without conversion to AC3 file). Such a solution will be difficult to implement, but it certainly will give the best result.