Format Factory has been a popular choice for file conversion needs due to its versatility and ease of use. However, users should always download software from trusted sources and be mindful of any additional software that might be offered during the installation process.

The well-known multimedia conversion tool is simply called Format Factory (currently at version 5.x, not 59). Any mention of "Format Factory 59" is likely one of the following:

We tested Format Factory 59 (build 5.9.0.0) against the latest Format Factory 5.17 on a test rig: Windows 10 22H2, Intel i5-7400, 8GB RAM, no discrete GPU.

| Task | Format Factory 59 (v5.9) | Format Factory 5.17 (latest) | | :--- | :--- | :--- | | Convert 4K H.265 to 1080p H.264 | 12 minutes, 45 seconds | 14 minutes, 20 seconds | | CPU Usage during conversion | 78% (balanced) | 95% (maxed) | | Background bloat processes | 0 | 3 updater/analyzer tasks | | Memory footprint (idle) | 45 MB | 210 MB | | Success rate (odd codecs) | High | Medium (requires online codec pack) | | Advertisements in UI | None (bottom banner only) | Full sidebar + video watermarks |

Conclusion: For pure speed on standard video conversion (MP4, AVI, MKV), Format Factory 59 outperforms newer versions by roughly 15%, thanks to less bloat and more efficient CPU scheduling.

A notorious bug in earlier versions was "A/V desync" when converting variable frame rate (VFR) video from smartphones. Build 59 introduced an automatic audio delay calculator. Users report a 98% success rate correcting async issues without manual adjustments.

Drag 50+ files into the queue. Click the "Option" button next to the profile (the wrench icon).