MP4 vs WMA — Differences, File Size & When to Use Each

MP4 vs WMA

Ein detaillierter Vergleich von MP4 Video und Windows Media Audio — Dateigröße, Qualität, Kompatibilität und welches je nach Workflow zu wählen ist.

MP4 → WMA umwandeln

MP4

MP4 Video

Video Files

MP4 is the most universally supported video container format. It typically uses H.264 or H.265 video codecs with AAC audio, providing an excellent balance of quality and file size across all devices and platforms.

Über MP4-Dateien

WMA

Windows Media Audio

Audio Files

WMA is a proprietary Microsoft audio format from the Windows Media framework. Once common in the Windows ecosystem, it has been largely replaced by AAC and MP3 for general use.

Über WMA-Dateien

Vorteilsvergleich

MP4 Vorteile

Universal playback — every browser, phone, TV, game console, and editing suite reads MP4.
Supports modern codecs (H.264, H.265, AV1) with no container changes.
Progressive streaming works with the "moov atom" at the start of the file.
Carries subtitles, chapters, multiple audio tracks, and embedded metadata.
ISO-standardized (ISO/IEC 14496-14) and patent-licensable via MPEG LA.

WMA Vorteile

Good quality at low bitrates (32-64 kbps) — outperformed MP3 in that range.
Native playback on every Windows version 2000 through 10.
Lossless variant available (WMA Lossless) for archiving.
Supports multichannel 5.1 surround audio.

Einschränkungen

MP4 Einschränkungen

Codec licensing (H.264, H.265) carries royalty costs for commercial use.
Streaming requires the moov atom at the start — a misplaced atom breaks web playback.
Not ideal for lossless or professional editing workflows (use ProRes or DNxHD instead).
Editing an MP4 almost always re-encodes, degrading quality.

WMA Einschränkungen

Proprietary — poor support outside Windows and Windows Media Player.
DRM variants made files brittle — many purchased tracks became unplayable when stores shut down.
Ecosystem abandoned — no modern editors, hardware decoders, or streaming services use WMA.
Windows 11 deprecated Windows Media Player entirely.

Technische Spezifikationen

Spezifikation	MP4	WMA
MIME type	video/mp4	audio/x-ms-wma
Container	ISO Base Media File Format (ISO/IEC 14496-12)	ASF (Advanced Systems Format)
Common video codecs	H.264 (AVC), H.265 (HEVC), AV1, VP9	—
Common audio codecs	AAC, MP3, FLAC, Opus	—
Max file size	Practically ~16 TB; 2^63 bytes theoretical	—
Streaming	Supported with faststart (moov atom at front)	—
Extension	—	.wma
Variants	—	WMA Standard, WMA Pro, WMA Lossless, WMA Voice
Max bitrate	—	768 kbps (WMA Pro)

Typische Dateigrößen

MP4

Smartphone video (1080p, 1 min) 60–120 MB
4K video (1 min, H.265) 200–400 MB
Streamed movie (90 min, H.264) 1–4 GB
Social clip (15s, H.264, 720p) 3–8 MB

WMA

3-min song (128 kbps) 3 MB
3-min song (Lossless) 25-35 MB
1-hour talk (64 kbps) 28 MB

Bereit zum Umwandeln?

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MP4 zu WMA umwandeln

Häufig gestellte Fragen

MP4 (MPEG-4 Part 14) is the most universal video container format, standardized by ISO in 2001. It typically holds H.264 or H.265 video with AAC audio and supports subtitles, chapters, and metadata.

MP4 (MPEG-4 Part 14) is the most universal video container formato, padrãoized by ISO in 2001. It tipicamente holds H.264 ou H.265 video com AAC audio e suporta subtitles, chapters, e metadata.

MP4 files play on virtually every device and media player including VLC, Windows Media Player, QuickTime, and all web browsers. Smartphones and smart TVs also support MP4 natively.

MP4 arquivos reproduzir on virtually every device e media player including VLC, Windows Media Player, QuickTime, e all web browsers. Smartphones e smart TVs also support MP4 natively.

MP4 has broader device compatibility and is the standard for streaming and social media. MKV supports more audio tracks, subtitles, and codecs, making it better for archiving movies with multiple languages.

MP4 has broader device compatibilidade e is the padrão para streaming e social media. MKV suporta more audio tracks, subtitles, e codecs, making it better para archiving movies com multiple languages.