How do I convert FSX flight recordings to video?

An FSX Flight Video recording is usually an .FSR replay file, not an MP4 or other playable video. To make a shareable MP4, open and replay the .FSR in FSX or FSX: Steam Edition, record that playback with screen-capture software, then trim and export the captured footage as MP4.

FSR or ‘FRS simulator’ file?

“FRS simulator” is almost always a reversal or typing mistake: native FSX Flight Video recordings use the .FSR extension.

An FSR contains recorded simulator states and replay instructions that tell FSX how to reconstruct the flight. It contains no playable video frames and no conventional audio track, so a media player or video editor cannot decode it directly.

If your file has a different extension, it may have been created by another replay utility and must be opened with that utility. FSX Instant Replay is different again: it is a temporary replay buffer rather than a finished video file. Our explanation of the recording and replay methods available in FSX helps identify which type you have.

A replay may also depend on the original aircraft, gauges, scenery and add-ons. An FSR does not package those assets, and moving one between boxed FSX and FSX: Steam Edition does not guarantee identical playback.

Which screen-capture method should I use?

Use Windows Game Bar for a quick recording with few settings; choose OBS when you need control over the captured source, audio tracks, encoder or output quality.

For the recorder configuration itself, follow our practical OBS and Windows Game Bar settings for flight simulators, including source selection, sound capture and frame-rate choices.

How do I turn an FSX replay into MP4?

The reliable workflow is to verify the replay in FSX, record it in real time and then create the MP4 from that screen capture.

1. Back up the original FSR. Keep an untouched copy before moving, renaming or testing the recording.
2. Open the recording in FSX. Start FSX or FSX: Steam Edition, reveal the menu bar with Alt if necessary, and use the Flight Video controls under the Options menu to select the recording. Play a short section before attempting the full capture.
3. Prepare the shot. Select the cockpit, spot, tower or other view you want. Set the simulator resolution, hide menus and move the mouse pointer out of frame. Allow detailed scenery and the aircraft model to finish loading.
4. Configure and test the recorder. Select the FSX window or display, enable the Windows output device carrying FSX sound and confirm the recording folder. Make a short test. If the computer struggles at 60 frames per second, use 30 rather than accepting an uneven recording.
5. Capture the playback. Start screen recording a few seconds before starting the FSR replay. Avoid opening menus during the required sequence, then stop the recorder after the shot has finished.
6. Trim and create the MP4. Remove the unwanted footage at each end. H.264 video and AAC audio inside an MP4 container provide broad compatibility. If OBS recorded to another container such as MKV, use its remux function or a proper editor export rather than renaming the extension.

Yes, I want to save it—what should I save?

Save the original .FSR for future simulator replays and save the captured footage as MP4 for normal viewing, editing or sharing.

• Keep the FSR if you may want to replay the flight in FSX, change the camera or record another version later. Keep a note of any aircraft and scenery add-ons it requires.
• Keep the MP4 as the finished FSX flight video. This file contains the visible frames and captured sound, so it can be opened without FSX.

Before recording a long flight, confirm the destination in the recorder. OBS shows it as the Recording Path in its output settings; Game Bar’s capture settings show where its clips are being stored.

You may call the finished file fly.mp4, but changing flight.fsr to fly.mp4 is not conversion. A mistake we see constantly is changing the extension without creating new video data. Only the screen recorder, remuxer or video editor can produce a valid MP4.

Can I convert an FSX recording to MP4 on a Mac?

A Mac video converter cannot convert an FSR by itself because the replay must run inside a working Windows installation of FSX or FSX: Steam Edition.

• Use a Windows PC remotely. Connect to a Windows computer that has FSX, the recording and its required add-ons. For the best result, run the screen recorder on that Windows PC and transfer the completed MP4 to the Mac afterwards. Recording the remote-desktop picture on the Mac can work, but streaming compression, reduced resolution and missing audio may lower the quality.
• Run Windows on compatible Mac hardware. An Intel-based Mac capable of running Windows directly can run FSX if its graphics support is adequate. A virtual Windows installation is another possibility, but only if it provides the DirectX and graphics acceleration FSX needs while leaving enough performance for simultaneous video encoding.

FSX does not run natively in macOS. On Apple-silicon Macs, virtualisation or emulation compatibility can vary, so replaying and capturing on a separate Windows PC is generally the more dependable route. In every case, the actual FSR playback must happen in FSX before an MP4 can be produced.

Why is the captured video black, silent or stuttering?

Black video, missing sound and uneven footage usually come from the selected capture source, the wrong Windows audio device or a computer overloaded by FSX and video encoding at the same time.

• Black picture: switch between game, window and display capture. Running FSX in windowed mode often avoids full-screen capture problems. If FSX is running with administrator privileges, the recorder may need the same privilege level to capture it correctly.
• No simulator sound: select the Windows output device actually used by FSX, not just the microphone. An FSR has no original soundtrack; FSX regenerates engine and environmental sounds during playback. ATC, add-on sounds and events triggered by custom aircraft logic may not be reproduced exactly.
• Stuttering replay: first watch the FSR without recording. If it is already jerky, the screen recorder cannot repair it; reduce FSX’s graphics, traffic or scenery workload and see our specific fixes for uneven FSX replay playback.
• Smooth replay but stuttering capture: reduce the capture resolution or frame rate, use a suitable hardware encoder if available and avoid writing the recording to a slow or heavily used drive. A short test is more useful than discovering an encoding problem after a complete flight.
• Missing aircraft, livery or gauges: restore the add-ons used when the replay was created. The FSR does not embed aircraft models, textures, scenery or custom gauges.
• Animation drift or incorrect systems: complex add-on logic and control-surface animations do not always reproduce perfectly. Capture shorter sections and verify each one before recording the full sequence.

Can I create several camera shots from one FSR?

You can replay the same FSR several times, recording a different camera view on each pass, and then combine those MP4 clips in an editor.

This usually produces cleaner footage than switching repeatedly between cockpit, spot and tower views during one capture. Check the start and end points on every pass, because long or complex replays may drift slightly and add-on aircraft systems may not return to exactly the same state each time.