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What is WMV?

WMV (Windows Media Video) is Microsoft's compressed video format designed for Windows Media Player and streaming.

What is VP9?

VP9 is Google's next-generation open-source video codec delivering 50% better compression than VP8 for 4K streaming.

When Should You Use WMV vs VP9?

Use WMV When...

Reach for WMV when your priority is windows media, office presentations — its efficient compression makes sharing fast and storage minimal.

Use VP9 When...

Reach for VP9 when your priority is youtube 4k, web video, chrome streaming — its efficient compression makes sharing fast and storage minimal.

WMV vs VP9: Key Differences

  • •WMV and VP9 diverge on compression: lossy compression for the source, lossy compression for the target.
  • •Since both WMV and VP9 use lossy compression, the quality characteristics are comparable — differences in file size come down to how efficiently each format implements compression.
  • •Alpha channel support: VP9 lacks transparency support.
  • •Storage footprint: Similar to MP4 at equivalent quality for WMV vs Smaller than H.264 at same quality for VP9.
  • •WMV is optimized for windows media, office presentations while VP9 is designed for youtube 4k, web video, chrome streaming — choose based on your specific workflow needs

Advantages of WMV

  • ✓WMV uses lossy compression tailored for Windows media, Office presentations.
  • ✓WMV is supported natively on virtually every device, browser, and operating system.
  • ✓WMV files are compact and quick to transfer, even over slow connections.
  • ✓WMV integrates seamlessly with all major creative tools and workflows.

Advantages of VP9

  • ✓At its core, VP9 relies on lossy encoding — a design choice that makes it perfect for YouTube 4K, web video, Chrome streaming.
  • ✓You won't run into compatibility issues with VP9 — it's a universal standard across platforms.
  • ✓File size management with VP9: aggressive compression with minimal visible quality loss.
  • ✓Every major application in the YouTube 4K, web video, Chrome streaming space supports VP9 natively.

Common Use Cases for WMV to VP9 Conversion

  • Training tutorials
  • Customer testimonial videos
  • Streaming and online sharing
  • Professional video editing
  • Social media content
  • Security and surveillance

Industry Applications

Security SystemsAdvertisingContent CreationFilm ProductionSocial MediaVideo Streaming

Best Practices for WMV to VP9 Conversion

  • →For WMV to VP9: encode at the target platform's native resolution — upscaling or downscaling adds unnecessary artifacts
  • →Test a short clip before converting the entire WMV file — this confirms VP9 settings produce acceptable quality
  • →VP9 uses modern codecs that deliver great quality at lower bitrates — take advantage of this during conversion
  • →Use constant bitrate (CBR) for streaming delivery and variable bitrate (VBR) for archival storage
  • →Keep the original file in case you need to re-encode with different settings
  • →Check audio sync after conversion — container changes can sometimes cause drift

Related Article

Video Compression Guide: Reduce File Size Without Losing Quality

Learn more about WMV and VP9 formats in our detailed guide.

Troubleshooting WMV to VP9 Conversion

  • !VP9 won't play on target device → check codec compatibility (H.264 has broadest support)
  • !Audio out of sync after WMV to VP9 conversion → try re-muxing with a different container format
  • !VP9 quality is too low → increase the bitrate; for 1080p video, 8-15 Mbps is recommended
  • !File size increased converting WMV to VP9 → lossless or higher-bitrate outputs naturally produce larger files

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About WMV and VP9

WMV

WMV (WMV videos) - Windows Media Video, Windows media format. Best for windows media, office presentations.

VP9

VP9 (VP9 video) - VP9, next-gen open-source video codec for 4K web video. Ideal for youtube 4k, web video, chrome streaming.

Format Comparison

CompressionLossy → Lossy
TransparencyN/A
Use CaseConvert from windows media, office presentations to youtube 4k, web video, chrome streaming
File Size~Smaller than H.264 at same quality after conversion

FAQs

Is converting WMV to VP9 free?

Yes, GoConvertFile offers free conversion of WMV to VP9 for files up to 100MB. No registration required.

How long does it take to convert WMV to VP9?

Most WMV to VP9 conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.

What is VP9 best used for?

VP9 is ideal for youtube 4k, web video, chrome streaming. VP9, next-gen open-source video codec for 4K web video

What file size should I expect after converting WMV to VP9?

File size after WMV to VP9 conversion depends on the content complexity and quality settings. Both formats use similar compression approaches so sizes are comparable.

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Tune output for this video conversion
80%
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