3G2 is a multimedia file format used for storing video and audio content. It is commonly used by mobile phones and portable devices for recording and playing back videos. 3G2 files are compressed and optimized for mobile devices, offering a balance between video quality and file size, making them suitable for mobile streaming.
FLV is a video format commonly used for streaming videos over the web. It’s supported by Adobe Flash Player and offers high compression rates, making it ideal for online video content. FLV files are used by many video-sharing platforms but are less commonly supported by modern devices compared to MP4.