What is WMV?
Windows Media Video (WMV) is a compressed video format developed by Microsoft as part of the Windows Media framework. Initially released in 1999, WMV was designed to compete with RealVideo and QuickTime. The format offers good compression and was widely used for streaming video and downloadable content in the 2000s, particularly on Windows platforms.
Microsoft's video compression format designed for Windows Media Player
History
The evolution of WMV format:
- 1999: WMV 7 released with Windows Media Tools
- 2001: WMV 8 introduced improved compression
- 2003: WMV 9 released, basis for VC-1 standard
- 2006: VC-1 approved as SMPTE standard
- 2008: Used on HD DVD and Blu-ray formats
Features and Capabilities
- Advanced Compression: Based on MPEG-4 Part 2 and VC-1 codecs
- DRM Integration: Built-in Windows Media DRM support
- Streaming Capabilities: Optimized for Windows Media Services
- Multiple Profiles: Simple, Main, and Advanced for different needs
- HD Support: Capable of 1080p and beyond
- Metadata Rich: Extensive tagging and chapter support
Common Use Cases
WMV is commonly used in the following scenarios:
- Windows-based video streaming services
- Corporate training and presentation videos
- Legacy video archives and libraries
- Screen recording and capture applications
Advantages
- Good compression efficiency for file size
- Native Windows platform integration
- DRM support for protected content
- Wide quality range from web to HD
Limitations
- Limited support on non-Windows platforms
- Patent and licensing requirements
- Less popular than MP4/H.264
- Declining adoption in favor of open standards
Technical Specifications
| Specification | Details |
|---|---|
| Video Codec | WMV 7/8/9, VC-1 |
| Audio Codec | WMA, WMA Professional |
| Maximum Resolution | 4096×2304 pixels |
| Bit Rates | Variable, typically 250 kbps to 10 Mbps |
| Color Depth | 8-bit or 10-bit |
| Frame Rates | Variable, up to 60 fps and beyond |