Many devices are able to record video and audio files. Every device uses a different type of format to be used only with certain operating systems, such as Windows or Android. Some people will choose to use a video converter to change the format so that they can be opened by other devices.
Many websites will offer a free converter. Some of them work better than others so it is important to do the proper research and make sure that the converter is able to give the files the proper format. Not all converters are going to be free.
Some video files are larger than others. A video converter will need to be able to handle the size of the file that it needs to convert. Some converters have a limit on the file size that they can handle. Each one will be different so it is important to know what you are converting from and what you want to convert it to before starting any conversion.
Phones and mp3 players can record videos and be downloaded to some computers. Not all of them are able to be viewed on the computers though. A free mp3 converter may be used to make these videos or audio files sharable.
Every audio and video converter will have things that people love about it. Not all of them can do large files but there are a lot of them that can. The size and type of file can greatly impact where someone will need to get help with the conversion of the file.