WTV to CAF Converter
Processing entirely on your device — large files may take a moment.
WTV is Windows Media Center's TV recording format — tuner captures with metadata, subtitles and multiple audio tracks inside. Convert CAF files to WAV or MP3 for use outside the Apple ecosystem.
iLoveConverter processes everything locally on your computer, which makes it private and fast: no upload wait, no server storage, no limits. Add as many files as you like — batch conversion is built in.
How WTV compares to CAF
| WTV | CAF | |
|---|---|---|
| Structure | Microsoft WTV container + MPEG-TS payload | caff header + chunk table |
| Types / schema | MPEG-2/H.264 + subtitles | PCM/ALAC/AAC in CAF |
| Compatibility | ffmpeg, Windows Media Center | afconvert, Logic Pro, ffmpeg |
| Best for | PVR archive migration | Apple pro-audio workflows |
How to convert WTV to CAF
- 1
Select your files
Select your WTV video.
- 2
Convert instantly
The engine demuxes the container and encodes the audio track into your chosen format.
- 3
Download results
Download the CAF audio — the video track is simply dropped.
About the WTV format
WTV is Windows Media Center's recording format — what a tuner card wrote when you scheduled a TV show. Inside sits the broadcast transport stream (MPEG-2 or H.264) plus title metadata, subtitle tracks and multiple audio languages, all wrapped in Microsoft's own container.
Media Center died with Windows 10, but the recordings live on: ffmpeg reads WTV natively, so converting to MP4 or MKV keeps the content playable on any device with the metadata you actually care about.
+ Strengths
- ✓Complete tuner captures with subtitles
- ✓Multi-language audio preserved
- ✓ffmpeg decodes natively
! Limitations
- −DVR-MS (older) is a different format
- −Broadcast DRM variants exist
- −Copy-once flags block some captures
About the CAF format
CAF (Core Audio Format) is Apple's container for pro audio: 64-bit file offsets for recordings of any length, any codec as payload (PCM, ALAC, AAC), and time-stamped MIDI-style event chunks. Logic Pro exports it and macOS system sounds ship in it.
ffmpeg decodes the common PCM/ALAC payload variants, converting CAF to WAV or MP3 for use in any non-Apple DAW, player or web player.
+ Strengths
- ✓64-bit offsets — no size ceilings
- ✓Native to Logic Pro pipelines
- ✓Flexible codec payload
! Limitations
- −Apple-centric — rare outside macOS
- −Some CAF variants (UUID chunks) unsupported
- −Tag metadata Apple-specific
Why convert WTV to CAF?
Think of it as moving your file to the container that fits the job. DVR-MS (older) is a different format CAF works differently: 64-bit offsets — no size ceilings If any of that sounds like your task, run the conversion — it takes seconds and nothing leaves your device.
Frequently asked questions
Is this WTV to CAF converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Is there a file size limit for WTV to CAF?
The only limit is your device's memory, since nothing is uploaded. Files up to a few hundred megabytes work fine on a modern desktop browser; very large files simply take a little longer.
Does converting WTV to CAF re-encode my video?
Yes. The video is decoded and re-encoded with the settings chosen by the quality slider, which is what allows the format and size to change. For an archival copy, keep higher quality; for sharing, lower quality gives a much smaller file.
Why is video conversion slower than image conversion?
Every frame has to be decoded and re-encoded. This site runs that work on your own CPU via WebAssembly — nothing is uploaded, but a multi-minute video reasonably takes a few minutes. Images, by comparison, are single-frame jobs.