To fix this, you're suggested to convert Sony XAVC to MP4 format for better playing on any devices or editing on video editing software like Premiere Pro. How to Convert Sony XAVC, XAVC S or XAVC HS 4K to MP4įeel strange that your Sony recorded video footage not playing or editing on your devices? That's probably because your Sony footage is encoded in XAVC or XAVC S format, which is not supported widely.