Obviously, stealing videos from YouTube is a big no-no. There's a reason YouTube runs ads: People make a living this way. Watching YouTube videos offline through unofficial channels takes money from Google and video creators. It's more black and white when you consider Google's terms of service for YouTube (Opens in a new window), which read: 'You are not allowed to.access, reproduce, download, distribute, transmit, broadcast, display, sell, license, alter, modify or otherwise use any part of the Service or any Content except: (a) as expressly authorized by the Service or (b) with prior written permission from YouTube and, if applicable, the respective rights holders.' On the copyright front, as long as you're downloading a video for your own personal offline use, you're probably okay.

But when the topic of downloading YouTube videos comes up, there's a side subject that must be broached: Is it legal? That said, sometimes you really want or need to have one of those videos on your own computer or phone. And that's hardly the most astounding statistic about the site, which has been the go-to destination for uploading and watching videos online since 2005. There are billions of hours of video on YouTube, literally. How to Set Up Two-Factor Authentication.How to Record the Screen on Your Windows PC or Mac.How to Convert YouTube Videos to MP3 Files.How to Save Money on Your Cell Phone Bill.How to Free Up Space on Your iPhone or iPad.How to Block Robotexts and Spam Messages.To resolve this issue, try VLC media player. MP4 is a container that contains various kinds of data, so when there is a problem opening the file, it usually means that data in the container (an audio or video codec) is not compatible with the device’s OS. On some devices, particularly mobile, opening this file type can be problematic. On Windows, it opens in Windows Media Player. There is no need for third-party software. Simply double-clicking the file opens it.

MP4 files open in the operating system's default video player.

Many consider MP4 to be one of the best video formats available today. It is also a popular video format for streaming over the Internet, such as on YouTube. It is compatible with a wide range of devices and operating systems, using a codec to compress file size, resulting in a file that is easy to manage and store. MPEG-4 (MP4) is a container video format that can store multimedia data, usually audio and video.

Youtubevideo to mp4