Converting .mp4 videos to .3g2 format.
Converting MPEG-4 Videos directly to 3GPP2 Multimedia Files (.mp4 to .3g2 conversion) is certainly possible and should be quite straightforward.
Try using video editing programs or conversion tools, such as the Freemake Video Converter, which allows users to import MP4 videos and export them in 3G2 format.
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