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README.md

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+# Audio/Video Converter (wxPython + FFmpeg)
+
+Simple GUI converter that wraps `ffmpeg` for audio/video format conversion.
+
+## Requirements
+- Python 3.9+
+- `ffmpeg` available on PATH
+
+## Install
+```powershell
+python -m venv .venv
+.\.venv\Scripts\Activate.ps1
+pip install -r requirements.txt
+```
+
+## Run
+```powershell
+python main.py
+```
+
+## Notes
+- The app does not bundle `ffmpeg`. Install it separately and ensure `ffmpeg` is on PATH.
+- Conversion runs in a background thread; the UI stays responsive.