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 If your GoPro is creating multiple files per video, the additional files could serve different purposes. Here’s a breakdown of common extra files you might see:

1. MP4 Files (GXO####.MP4) – The Main Video

  • Your video is likely split into multiple parts due to file size limitations, especially in high-resolution formats (4K/5K, high bitrate, or long recordings).
  • You need to merge them in editing software to get the full video.

2. LRV Files (GXO####.LRV) – Low-Resolution Preview

  • These are Low-Resolution Video (LRV) files used for faster playback on your GoPro app.
  • If you're browsing on your GoPro or editing in the app, it uses these for smooth performance.
  • Not needed if you're transferring full-quality files.

3. THM Files (GXO####.THM) – Thumbnail Images

  • These are tiny thumbnail images used to display previews on your GoPro or app.
  • Not part of the actual video.

4. WAV Files (Audio Separates in Some Modes)

  • If enabled, GoPro might save separate audio tracks (for example, RAW audio in some Protune settings).

What You Can Do:

  • Keep the MP4s (merge them if necessary).
  • Ignore or delete LRV and THM files unless using the GoPro app.
  • Check WAV files if you need separate audio tracks.

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