Convert M4P to WMV — Free Online Converter
Convert iTunes Protected AAC (.m4p) to Windows Media Video (.wmv) online for free. Fast, secure audio conversion with no watermarks or registration....
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How to Convert
Upload your .m4p file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .wmv file when it's ready.
About M4P to WMV Conversion
M4P is Apple's audio-only DRM-protected format, while WMV (Windows Media Video) is Microsoft's video container using the ASF (Advanced Systems Format) wrapper. Converting audio-only M4P to WMV creates a Windows Media file containing just WMA audio inside the ASF container — no visual content is present. This conversion targets legacy Windows-based media systems that require WMV/ASF containers for all media input.
WMV was Microsoft's answer to QuickTime and RealMedia during the streaming media wars of the early 2000s. Windows Media Player, Windows Media Center, and Microsoft's server products were all built around the ASF/WMV/WMA format family. While WMV is effectively obsolete for new projects, legacy corporate media infrastructure built on Microsoft technology may still require WMV input.
Why Convert M4P to WMV?
Legacy Microsoft media infrastructure — Windows Media Server, SharePoint media libraries built in the 2000s, and corporate intranets with WMV-only media players — sometimes reject non-WMV files entirely. If you need to add audio content to these systems from an iTunes library, wrapping the audio in a WMV/ASF container satisfies the format gate.
Some older presentation and e-learning systems from the Windows Media era also require WMV for embedded media. Articulate Presenter, Adobe Captivate (older versions), and custom corporate training platforms may accept only WMV for media embedding. Converting M4P to WMV allows inclusion of iTunes audio in these legacy training and presentation systems.
Common Use Cases
- Add iTunes audio to legacy SharePoint media libraries that accept only WMV/ASF containers
- Embed audio from iTunes in older e-learning platforms requiring WMV media input
- Feed audio into Windows Media Server streaming infrastructure
- Satisfy WMV format requirements in corporate intranets built on Microsoft media technology
- Create WMV-wrapped audio for legacy Windows Media Center libraries
How It Works
FFmpeg decodes the AAC audio from the unprotected M4P and re-encodes it as WMA v2 audio inside an ASF container with the .wmv extension. Since the source is audio-only, no video stream is generated unless a static image is explicitly included. The command uses -c:a wmav2 -b:a 192k for typical music content. The ASF container wraps the WMA audio with Microsoft's proprietary header objects and data packets.
Quality & Performance
Audio quality depends entirely on the WMA encoding settings. At 192 kbps WMA from a 128 kbps M4P source, quality is good with minor transcoding artifacts. At 256+ kbps from 256 kbps iTunes Plus sources, quality is very close to the original. The WMV container itself has no impact on audio quality — it is identical to a standalone WMA file in terms of audio encoding.
Device Compatibility
| Device | M4P | WMV |
|---|---|---|
| Windows PC | Partial | Native |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No | No |
Recommended Settings by Platform
Spotify
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Apple Music
Resolution: N/A
Bitrate: 256 kbps
AAC format required
SoundCloud
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Podcast
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
Tips for Best Results
- 1Use .wma extension for audio-only content; .wmv is only needed when the target system requires it
- 2Set WMA audio to 192+ kbps for good quality despite the lossy-to-lossy transcoding
- 3Add a static album cover as a video track if the target player requires video in WMV files
- 4Verify DRM removal from M4P before conversion; FairPlay-protected files will not process
- 5Consider migrating your WMV-based systems to MP4 rather than continuing to produce WMV files
M4P to WMV is a niche conversion for legacy Microsoft media infrastructure. Unless you have a specific system requiring WMV containers, WMA (audio-only) or MP4 are better choices for general use.