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WEBM vsWMV: Key Differences & Best Format for You

Compare the features of WEBM and WMV file formats to choose the best option for your needs.

Basic Information

WEBMWMV
CategoryThe general type of file (audio, image, etc.).
videovideo
CompressionMethod used to reduce file size (Lossy, Lossless, Uncompressed).
LossyLossy
Relative SizeTypical file size compared to other formats.
MediumMedium
MIME TypesCommon MIME types associated with the format.
  • video/webm
  • video/x-ms-wmv
Open FormatIs the format specification publicly available and free to use?
YesNo

Technical Details

WEBMWMV
Bit DepthNumber of bits used to represent color or audio sample amplitude (higher means more detail).
--
ResolutionImage dimensions (pixels) or audio sample rate/video dimensions.
Variable (up to 8K and beyond)Variable (up to HD)
Max QualityHighest achievable quality level or characteristic.
High (VP9/AV1 very efficient)Good for its time
Encoding MethodSpecific algorithm or standard used for encoding the data.
VP8 / VP9 / AV1 video, Vorbis / Opus audioWindows Media Video codec, WMA audio
Max File Size LimitAny known maximum file size limitations.
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Features & Usage

WEBMWMV
CompatibilitySoftware, devices, or platforms that support the format.
  • Web Browsers (Chrome, Firefox, Edge, Opera)
  • Android
  • VLC
  • YouTube
  • Windows Media Player
  • Windows
  • Some media players (VLC)
Use CasesCommon applications and scenarios where the format is used.
  • HTML5 web video
  • Streaming (YouTube default)
  • WebRTC
  • Windows ecosystem video
  • Older web streaming (Silverlight)
  • DRM-protected content
Metadata SupportCan the format store additional information (tags, descriptions, etc.)?
YesYes
Transparency SupportDoes the format support transparent backgrounds (for images)?
--
Editing FriendlyIs the format suitable for easy editing without significant quality loss?
NoNo
Encryption SupportDoes the format support password protection or encryption?
--

Pros & Cons

WEBMWMV
ProsAdvantages and strengths of the format.
  • Open-source and royalty-free
  • Optimized for web streaming
  • High quality with efficient compression (especially VP9/AV1)
  • Good compression for its time
  • Integrated with Windows ecosystem
  • Supports DRM
ConsDisadvantages and weaknesses of the format.
  • Not supported by Safari before version 14.1
  • Less hardware decoding support than H.264
  • Proprietary Microsoft format
  • Limited compatibility outside Windows
  • Largely superseded by MP4