How can I convert swf files to mp4 now on Windows?

Swivel is an open-source tool specifically designed to convert SWF to MP4 on Windows. It's a great choice because it can export high-definition video without dropping frames or losing audio sync, which is exactly what you're looking for.

How to Use Swivel to Convert SWF to MP4

1. Get the Tool: You can download Swivel.
2. Add Your File: Open Swivel, click "ADD" next to "Input SWFs", and select your SWF file.
3. Choose Your Mode: For simple files that play automatically, select "Frame Range". For complex files with preloaders, select "Manually Start and Stop Recording".
4. Set Video Options (Optional): Go to the "VIDEO" tab to adjust resolution, bitrate, and codec. The default is a 1080p H.264 MP4, which works well for most situations.
5. Start Conversion: Click the "CONVERT" button, then click "RECORD". If you're in manual mode, click "Play" in the preview window. When your movie finishes, click "STOP" and wait for the conversion to complete.

However, there are a few important things to keep in mind:

• Compatibility: While it works for many files, there have been reports of the software failing to open or convert specific SWF files. It's best to test it with your specific file to see if it's compatible.
• Manual Mode for Complex Files: If your SWF file has menus or interactive elements that don't play automatically, you can use the "Manual" recording mode. This allows you to click the play button yourself and then stop the recording when your content is finished.

Swivel is a powerful and free solution to convert SWF to MP4 on your Windows PC, especially if you need high-quality results and are willing to accept potentially long processing times.