Now when I do Command I inside of QuickTime player you can see it says the Format, H2 64, that's what is actually inside. If I change it to M4V it will also work just as before. It will open it up in QuickTIme player just as before.
Apple video file extension mac#
But if I change the file extension to MOV then my Mac is fine with that.
I can, for instance, double click on this file and it opens up in QuickTime player.
Apple video file extension mp4#
M4V is an even newer version of MP4, MP4 video. But a MP4 extension should only contain things that are mpeg4 videos which are most videos. Typically MOV containers can contain all sorts of old formats that used to be QuickTime formats including MP4 or mpeg4 files. Those file extensions indicate a container type and they contain similar things. It's still an envelope and you can't really tell what's inside by just looking at the envelope. An envelope, the physical one you send through the mail, could contain a letter. It's similar to you could think of an envelope. So, you can sometimes, as a matter of fact quite often, change the file name very easily. It's a MOV container and inside of it is something. The types of files that they are, containers. Videos are really interesting because videos have different extensions like MP4, MOV, or M4B. There's certain things you can change between like jpg and jpeg with an e. It doesn't ignore the file extension altogether. If I try to open it up it's going to say well let's let Preview handle that and Preview says I don't know what this is so you get an error. But if I were to change it to something, like I would change it to jpg, then it thinks it's an image and changes the icon even. So if I double click on that it will open up Microsoft Word. For instance, the docx format is a Microsoft word document. Now you normally wouldn't want to do that with a third party app or some other apps. Preview says, oh this is actually a jpg image so I'll ignore this here. It goes and looks at it and says yah, okay it's an image. But when I go to open it up it still opens it up. Now here it will complain about changing the file format or the extension. I can even go and try to fool it and say it's not a jpg image, it's a tif which is an older image format. I can change to something like xxx and it doesn't really care about that. I can, for instance, take away the extension completely and it's find with that.
Apple video file extension mac os#
You can even try to fool Mac OS and it won't work. So you can just take the e out and you're fine. Maybe you have an old jpg image that has an e. The only reason you would want to change the name is because sometimes different services or websites ask you submit something and they want it submitted as jpg and they won't accept say the format with the e in it. I double click on it and it opens up in Preview as before. As a matter of fact Mac OS doesn't even complain when you switch between those two because it knows they're the same thing. Somebody would ask how do you convert from jpg from jpeg. The extension is just a little convenience. So it knows this from inside the image what type it is. I can do Command I in Preview and it shows Document Type, jpg image. jpg I can double click and it will open up in Preview and knows it's a jpg file. You can go back and forth between either one of those. Which one is correct? Well both are fine. That's Off here meaning it's going to show that extension for this file no matter what I have set in Preferences. As a matter of fact if you select a file, do Command I to get info on it, you'll see a Hide Extension checkbox. I've used them when I've renamed or saved a file and Mac OS is smart enough to know to display them. You see these here, despite the fact that I have that turned off, because I've used those filename extensions. If you don't see them here you can go to Finder, Preferences and under Advanced you can check Show all Filename extensions. File extensions are the letters, usually about three or four letters, after the dot or period in the filename. Find out how you can become a part of that at /patreon. MacMost is brought to by the more than 300 people who contribute to the MacMost Patreon Campaign. Video Transcript: Hi, this is Gary with. Check out Understanding Mac File Extensions at YouTube for closed captioning and more options.
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