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Supports: WEBP
.webp images. Animated WebP, lossless WebP, and lossy WebP with alpha all work; batch upload is supported.WTV (Windows Recorded TV Show) is a Microsoft container that wraps MPEG-2 video with MPEG-1 Layer II or Dolby Digital AC-3 audio, designed for the Stream Buffer Engine in Windows Media Center on Vista (TV Pack 2008) and Windows 7. WebP is Google's RIFF-based image format that compresses ~26% smaller than PNG losslessly and 25-34% smaller than JPEG lossy. Going from a still image format to a TV-recording container is unusual but useful for a few specific scenarios:
.wtv — broadcast-adjacent and EPG-style integrations sometimes require WTV because their cataloging pipeline keys on the container.If your destination is just modern playback, WTV is rarely the right answer — convert to WebP to MP4 or WebP to MKV instead. Pick WTV only when the downstream tool truly requires it.
| Property | WebP | WTV |
|---|---|---|
| Type | Still / animated image (RIFF) | Recorded-TV video container |
| Released | 2010 (Google) | 2008 (Microsoft, with WMC TV Pack) |
| Video codec | VP8 / VP8L (image data) | MPEG-2, sometimes MPEG-4 / H.264 |
| Audio codec | None | MPEG-1 Layer II or Dolby Digital AC-3 |
| Predecessor | None (replaces PNG/JPEG/GIF) | DVR-MS (Windows XP MCE) |
| DRM / metadata | EXIF, XMP, ICC | CableLabs CCI, EPG metadata, broadcast flag |
| Native playback | Chrome, Safari, Firefox, Edge, Opera | Windows Media Center (Vista TV Pack 2008 / Win 7); VLC and File Viewer Plus elsewhere |
| Modern Windows | Built into Windows 10/11 Photos | Media Center removed in Windows 10 (May 2015) — use VLC or convert |
| Typical use | Web images, app icons, animated stickers | Cable / OTA TV recordings, EPG-tied PVR archives |
| Preset | Use when | Trade-off |
|---|---|---|
| Constant Quality — Very High | Archival WebP slideshows, screen recordings you may re-edit | Largest file; quality stays even as motion increases |
| Constant Quality — High | Most photo slideshows and signage loops | Good balance; ~30-50% smaller than Very High |
| Constraint Quality + target file size | Fitting a specific disk/share quota, Media Center library budgets | May visibly soften on heavy motion if budget too tight |
| Constraint Quality + target bitrate | Matching a partner spec or an EPG ingestion bitrate cap | Predictable file size; quality varies with content |
| Lowest / Very Low | Preview drafts only | Heavy blocking; not usable for final delivery |
You shouldn't, unless something downstream specifically requires WTV. The container exists to feed Windows Media Center's Recorded TV library and a small ecosystem of PVR tools (Ceton, SiliconDust, HDHomeRun setups) that key on the .wtv extension. For everything else — web, mobile, Plex, social — WebP to MP4 is the right choice and produces a smaller, more compatible file.
Not natively. Microsoft removed Windows Media Center from Windows 10 in May 2015 and never reintroduced it. To play WTV on modern Windows you need VLC, File Viewer Plus, CyberLink PowerDVD, or you can convert WTV back to MP4 with our WTV to MP4 tool. Some third-party Plex/Emby setups can also transcode WTV on the fly.
Per Microsoft's Wikipedia documentation, WTV stores video as MPEG-2 (and occasionally MPEG-4 / H.264) with audio in MPEG-1 Layer II or Dolby Digital AC-3. Our converter writes MPEG-2 video — the most broadly compatible choice for Windows Media Center, VLC, and third-party WTV readers. There's no PCM-only WTV mode.
You control it in step 2 with the Image Duration dropdown. Presets range from 1/60-second per frame (effectively 60 FPS motion if you have a sequence) to 10 seconds per frame for a slow slideshow. For a typical photo gallery, 3-5 seconds reads naturally; for a screen-recording sequence exported as numbered WebPs, pick 1/24, 1/30, or 1/60 to match the source frame rate.
WTV / MPEG-2 has no alpha channel. Transparent pixels get composited onto the Background Color you choose in Advanced Options (default black). Pick a color that matches your downstream context — white for product shots on a light kiosk, gray to match Media Center's UI, or any of the 24 named colors in the dropdown.
Yes. Set the merge option to Merge images in step 2 and every uploaded WebP is concatenated, in upload order, into a single WTV at the duration you picked. Choose Video per image if you want one WTV file per source frame instead — useful when each WebP is a distinct asset for a Media Center playlist.
Yes. Animated WebP frames are decoded and re-encoded into the WTV's MPEG-2 stream at the frame rate implied by your Image Duration choice. If your source animation is 30 FPS, pick 1/30 second to preserve motion; longer durations sample frames and produce a slideshow effect.
No, and that's expected. Genuine WTV files from Media Center include Electronic Program Guide data, CableLabs Copy Control Information, and a broadcast flag because they came from a tuner. A file generated from WebP images contains only basic container metadata; it plays fine but won't show channel/title info in Media Center's grid view. Edit the file's display name in the Recorded TV folder if you need it labelled.
WebP is a heavily compressed still format; WTV with MPEG-2 video is much less efficient per second of footage. A 200 KB WebP shown for 5 seconds at 1080p typically expands to roughly 2-5 MB inside WTV depending on the Quality Preset. If size matters, lower the resolution preset, shorten the per-image duration, or switch to Constraint Quality with a target bitrate. For meaningfully smaller files at the same visual quality, WebP to MP4 (H.264) is 2-4× more efficient than WTV (MPEG-2).