M4V is Apple developed MPEG-4 file extension that is comparable to MP4. It encodes the movies or videos from Apple iTunes store. The difference between M4V and MP4 is that M4V is protected and it can be played if anyone has a license iTunes in his computer.
FLV is a Flash compatible video container that is used in several online video and audio streaming sites. Although it is viewed in web browser using adobe flash player, many other players also support FLV files. It has a header. It follows the similar format that a flash extension (.swf) uses to store video and audio data.
+200 Formats Supported
CloudConvert is your Swiss army knife for file conversions. We support nearly all audio, video, document, ebook, archive, image, spreadsheet, and presentation formats. Plus, you can use our online tool without downloading any software.
Besides using open source software under the hood, we’ve partnered with various software vendors to provide the best possible results. Most conversion types can be adjusted to your needs such as setting the quality and many other options.
Our API allows custom integrations with your app. You pay only for what you actually use, and there are huge discounts for high-volume customers. We provide a lot of handy features such as full Amazon S3 integration. Check out the API documentation.