What is MP4? What is MOV?
A story about video file formats you seem to know but don’t know
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Meet and enjoy! Video file types and characteristics
Nowadays, you can easily record videos on your smartphone or tablet, and you can easily enjoy your memories of your trip, the appearance of your grandchildren, your pet’s walk, etc. without a video camera.
I usually shoot videos unconsciously, but did you know that there are actually several formats?
Depending on the video format, it may not be possible to play it on your computer or smartphone.
However, if you understand the basics, you can enjoy the life of video without the hassle of “I can’t watch the video!”
What is the difference in the video format?
Although video files look the same at first glance, they actually come in a variety of formats.
There are many kinds of video formats like MP4, MOV, AVI, WMV, VOB, etc. , but each one has “mp4”, “mov”, “avi”, “wmv”, “vob” extensions.
* What is “extension”? Those who think that the …
is in the article “Tips” of the Japanese photographic heritage column,
“I don’t know, it seems to know. What? If I jpg, we are talking about image file format”,
has been introduced in the increase.
See also here.
Now, there are two factors that determine the difference in the types of images. It is
: -Format
compression -Data storage method
.
Video files contain data such as video and audio, and the file size is very large in its original state, so for ease of use, we “compress” the file (a technology to reduce the size).
This method of compression is called a “codec” and the file format varies depending on how it was compressed.
Also, there are many ways to store (save) video compressed with a codec, and these differences are the differences in the extension (file format).
The playable “extensions” are determined by the recording and playback devices, such as smartphones, camcorders, and DVDs, and their specifications (specifications). Depending on whether you are doing it or not, you may or may not be able to play it.
When using video, you need to select the file format taking into account its purpose and versatility, such as storage capacity and whether it can be played regardless of the software or application.
However, I am not sure if it is called video format! I think some people think that.
That should be the case, videos taken with smartphones and tablets that you regularly use are saved in a versatile format without difficult operations or procedures.
I will explain in detail the relationship between smartphones and videos in another column.
