Video Conversion

Convert MPEG to WMV: Free Online Converter

Convert MPEG Video to Windows Media Video online for free. Fast, secure video conversion with no watermarks or registration.

163,297件のファイルを変換済み

ファイルを選択

またはページ内の任意の場所にドラッグ＆ドロップ

MPEGに対応

アップロードすることで、これらのファイルの権利を有していること、および利用規約に同意することを確認したものとみなされます。

転送時に暗号化

変換設定: ファイルを追加すると調整できます

Trim Start

Format: HH:MM:SS (leave empty to start from beginning)

Trim End

Format: HH:MM:SS (leave empty to keep until end)

Volume

0100%200

0% = silent, 100% = original, 200% = double loudness

Audio Fade In

00s10

Gradually fade the audio track in over this many seconds

Audio Fade Out

00s10

Gradually fade the audio track out over the final seconds

Audio codec

Keep original audio cannot be combined with volume, fades, bitrate or sample rate.

Audio bitrate

Audio sample rate

Remove audio

Makes a silent video.

Quality

Resolution

Frame Rate

Resize Mode

Audio Channels

Crop X

Horizontal offset (px) from left edge

Crop Y

Vertical offset (px) from top edge

Crop Width

Width of crop area (px). 0 = no crop

Crop Height

Height of crop area (px). 0 = no crop

Rotate

Flip horizontally

Flip vertically

Strip Metadata

Remove EXIF data, GPS, camera info

安全な転送

HTTPS暗号化アップロード

プライバシー優先

ゲストのファイルは約2時間で自動削除

登録不要

すぐに変換を開始

どこでも動作

あらゆるブラウザ、あらゆるデバイス

変換成功率をリアルタイムで見る

MPEGからWMVへの変換について詳しく見る

MPEG から WMV への設定

エンジン

メディア

設定

調整できる設定: 22

Trim Start
Trim End
Volume
Audio Fade In
Audio Fade Out
Quality
Resolution
Frame Rate
Resize Mode
Audio Channels
Crop X
Crop Y

変換方法

アップロードエリアにドラッグするか、クリックして選択し、.mpegファイルをアップロードしてください。

必要に応じて出力設定を調整してください。デフォルト設定ではオリジナルの品質を維持します。

「変換」をクリックし、準備ができたら.wmvファイルをダウンロードしてください。

MPEGからWMVへの変換について

WMV (Windows Media Video), part of Microsoft's Windows Media framework launched in 1999, uses the WMV9/VC-1 codec (later standardized as SMPTE 421M) for video compression. MPEG files use the older MPEG-1/2 video codecs. Converting MPEG to WMV produces video natively supported by Windows Media Player, PowerPoint, and the broader Microsoft ecosystem without additional codec installation.

MPEGをWMVに変換する理由

WMV is deeply integrated into Microsoft's software stack. PowerPoint presentations embed WMV video more reliably than any other format. Windows Media Player handles WMV with full feature support including DRM, bookmarks, and script commands. Corporate environments running Microsoft infrastructure — SharePoint, Teams (legacy), Windows Media Server — often standardize on WMV for internal video distribution.

WMV9/VC-1 also provides significantly better compression than MPEG-2 at equivalent quality levels, roughly matching early H.264 Baseline implementations. Converting MPEG-2 broadcast recordings to WMV can reduce file sizes by 40-60% while maintaining the same visual quality, all within a format that every Windows PC plays natively.

主な活用例

Embedding MPEG-sourced video in PowerPoint presentations
Distributing video through SharePoint and Microsoft-based intranets
Converting broadcast recordings for Windows Media Server streaming
Creating WMV files for legacy Windows-based kiosk and signage systems
Preparing video for corporate environments standardized on Windows Media

仕組み

FFmpeg transcodes using the WMV2 or WMV3 (WMV9) codec: `-c:v wmv2 -b:v 2000k -c:a wmav2 -b:a 192k -f asf`. For higher quality, use the msmpeg4v3 codec or VC-1 via FFmpeg. WMV uses the ASF (Advanced Systems Format) container. The output can include DRM, script commands, and multi-bitrate streams for adaptive delivery.

品質とパフォーマンス

WMV9 (VC-1) at 2-3 Mbps provides quality comparable to MPEG-2 at 5-6 Mbps, a significant compression improvement. The codec handles motion well but can produce slight blurring on static detail compared to H.264. For typical DVD-resolution MPEG source material, the conversion preserves visual quality while substantially reducing file size.

Media EngineModerateMinimal Quality Loss

デバイス互換性

Device	MPEG	WMV
Windows PC	Partial	Native
macOS	Partial	Partial
iPhone/iPad	Partial	Partial
Android	Partial	Partial
Linux	Partial	Partial
Web Browser	No	No

プラットフォーム別の推奨設定

YouTube

Resolution: 1920x1080

Bitrate: 8-12 Mbps

H.264 recommended for fast processing

Instagram

Resolution: 1080x1080

Bitrate: 3.5 Mbps

Square or 9:16 for Reels

TikTok

Resolution: 1080x1920

Bitrate: 4 Mbps

9:16 vertical, under 60s ideal

Twitter/X

Resolution: 1280x720

Bitrate: 5 Mbps

Under 140s, 512MB max

Resolution: 960x540

Bitrate: 2 Mbps

16MB limit for standard, 64MB for document

Discord

Resolution: 1280x720

Bitrate: 4 Mbps

8MB free, 50MB Nitro

最良の結果を得るためのヒント

1Use WMV9 (wmv3) codec for the best quality — WMV7 (wmv1) and WMV8 (wmv2) are inferior and only needed for very old Windows versions
2For PowerPoint embedding, keep resolution at 720p and bitrate under 5 Mbps to avoid playback lag during presentations
3Include ASF metadata during conversion for proper display in Windows Media Player library view
4If targeting modern Windows 10/11 environments, consider MP4 instead — Windows now plays MP4 natively everywhere WMV was once required
5For streaming via Windows Media Server, create multi-bitrate WMV profiles (500k, 1M, 2M) for adaptive quality

MPEGとWMVの比較

特徴	MPEG	WMV
正式名称	Moving Picture Experts Group	Windows Media Video
拡張子	.mpeg	.wmv

よくある質問

Not natively since Apple removed Windows Media support from QuickTime. VLC, IINA, and other third-party players handle WMV on macOS. For macOS-native playback, use MOV or MP4.

Yes, for older PowerPoint versions (2010-2016). PowerPoint 2019+ also handles MP4/H.264 well. WMV remains the most reliable embed format across all PowerPoint versions.

Yes. WMV in ASF container supports streaming via MMS (Microsoft Media Services) and HTTP progressive download. Windows Media Server handles WMV natively with multi-bitrate adaptive streaming.

MP4/H.264 provides better compression and universal compatibility. WMV's advantage is deep Microsoft ecosystem integration (PowerPoint, SharePoint, DRM). For general use, MP4 is preferred; for Microsoft-specific workflows, WMV has clear benefits.

Yes. WMV9/VC-1 supports up to 1920x1080 and was the codec used for HD DVD. Blu-ray also includes VC-1 as a supported codec alongside H.264 and MPEG-2.

Yes. Windows Media DRM (WMDRM) integrates directly with the WMV/ASF format, allowing protected content distribution that only plays on authorized devices and players.

他の形式をWMVに変換

AVI to WMV F4V to WMV M4V to WMV MKV to WMV MOV to WMV RM to WMV