WTV to MXF Converter

How to Convert WTV to MXF Online

1. Upload Your WTV File: Drag and drop, or click "+ Add Files" to pick .wtv recordings from your computer. Batch upload is supported, so an entire night of Media Center captures can be queued in one pass.
2. Pick a Quality Preset and Codec: Open Advanced Options. Choose File Compression mode (Constant Bitrate, Variable Bitrate, Constant Quality, or Constraint Quality), then set the Preset dropdown — "Very High (Recommended)" is the default; lower it for proxies, raise it for finishing masters. The output codec inside the MXF wrapper defaults to MPEG-2 for broadcast-safe ingest; switch to H.264 (AVC) if your edit suite prefers AVC-based mezzanines.
3. Set Resolution, Trim, and Bitrate (Optional): Use Preset Resolutions (720p, 1080p, 1440p, 2160p, etc.), Resolution Percentage, or enter custom Width x Height. Use the Trim control to cut commercial breaks or the pre-roll padding Media Center adds before the scheduled start time. Enter a target via Specific file size, or fine-tune Constant Bitrate / Variable Bitrate in Kbps or Mbps for delivery specs.
4. Convert and Download: Click "Convert" and grab the .mxf. Files are processed on our servers — no sign-up, no watermark, and the source recording is removed automatically a few hours after conversion.

Why Convert WTV to MXF?

WTV is Microsoft's recorded-TV container, introduced with the Vista TV Pack in 2008 and shipped with Windows Media Center on Windows 7 and 8.1 Pro. Microsoft discontinued Windows Media Center with Windows 10 in 2015, so anything still trapped in .wtv lives on a deprecated playback path and is invisible to nearly every professional NLE. MXF (Material Exchange Format), standardized as SMPTE ST 377-1 (originally 377M, 2004), is the broadcast industry's interchange wrapper — designed by the EBU/SMPTE Task Force to move essence and metadata between cameras, edit bays, MAM systems, and playout servers without re-wrapping.

• Ingest legacy Media Center archives into Avid or Premiere — Avid Media Composer and Adobe Premiere both treat MXF as a first-class import; WTV is unreadable in either without a transcode. An MXF OP-1a wrap loads directly into Media Composer bins.
• Strip Microsoft DRM and metadata baggage — protected recordings flagged with the broadcast flag will not transcode at all; once you convert a non-DRM .wtv, the resulting MXF carries clean SMPTE labels instead of Windows-only program-guide blobs.
• Wrap into broadcast-spec codecs — MXF natively carries MPEG-2 (IMX/D10), DNxHD/DNxHR (SMPTE VC-3), and AVC-Intra 50/100, while WTV is locked to MPEG-2 or H.264 with AC-3 audio meant for consumer playback.
• Long-term archival — many broadcast archives (BBC R&D, Library of Congress AV preservation) use MXF OP-1a with JPEG 2000 or FFV1 essence; WTV has no preservation-grade story and depends on a discontinued Windows component.
• Server playout and station automation — automation systems from Imagine Communications (ADC, Versio) and Grass Valley K2 expect MXF; dropping a .wtv on a station playout server will not air.
• Cross-platform editing on macOS and Linux — .wtv requires Windows-only decoders; MXF plays in DaVinci Resolve, Final Cut Pro (with DNxHD/ProRes essence), and ffmpeg-based pipelines on any OS.

WTV vs MXF — Format Comparison

MXF Codec Quick Guide (what to pick for which workflow)

Frequently Asked Questions

Why won't my WTV file convert — it just errors out?

Almost certainly the broadcast flag. Cable and satellite TV tuners stamp many recordings as "Copy Once" or "Copy Never" using the CGMS-A flag, which Windows Media Center honors by encrypting the .wtv. Encrypted recordings cannot be decoded outside Media Center on the original PC, so no converter — online or desktop — can transcode them. If your file is unprotected (over-the-air ATSC or unencrypted clear-QAM), it will convert; if it was scheduled from premium cable, it usually will not.

Should I output MPEG-2, DNxHD, or AVC-Intra inside the MXF?

It depends on the receiving system. Station automation (Imagine ADC, Grass Valley K2) typically expects MPEG-2 IMX/D10 at 30-50 Mbps. An Avid Media Composer edit benefits from DNxHD 120 (offline) or DNxHD 185x (10-bit finishing). News and Panasonic P2 workflows often standardize on AVC-Intra 100. If you don't know the destination's spec, MPEG-2 IMX is the safest broadcast-compatible default and is what the xconvert pipeline ships by default for MXF output.

What's the difference between MXF OP-1a and OP-Atom?

OP-1a (SMPTE 378M) wraps a single complete program with all video, audio, and data essence multiplexed into one self-contained file — this is what most ingest and playout servers expect. OP-Atom (SMPTE 390M) splits each essence stream into its own file (one for video, one per audio channel) and is the native layout for Avid Media Composer media databases. xconvert produces a single-file MXF suitable for ingest; if you need OP-Atom for an Avid bin, use Media Composer's "Consolidate/Transcode" after import.

My WTV has padding before and after the show — can I trim it out?

Yes. Windows Media Center adds pre-roll and post-roll padding around the scheduled time (default is one minute on each side) so you don't miss content. Use the Trim control under Advanced Options to set a start time and duration, or trim a fixed range. Doing this before conversion saves transcode time and produces a clean broadcast deliverable.

Does the MXF output keep the original audio tracks?

The converter remuxes audio into the MXF as PCM or the codec you choose; the WTV's AC-3 (Dolby Digital) track can be passed through with AC-3 selected as the audio codec, or converted to PCM (AES3-style) which most broadcast servers prefer. Multi-channel layout (stereo, 5.1) is preserved when the source is multi-channel; mono-stereo upmixing is not performed.

Why is the MXF file so much larger than the WTV?

WTV uses long-GOP MPEG-2 or H.264 at consumer bitrates (typically 5-15 Mbps for HD broadcast). Broadcast MXF essence — especially DNxHD 120 or AVC-Intra 100 — is intraframe (every frame is a keyframe) at 100-185 Mbps. That's 10x the bitrate, by design: intraframe codecs are easier to edit, scrub, and color-grade, but they trade compression for editability. If you only need archive playback, use MPEG-2 IMX at 30-50 Mbps to keep size manageable.

Can DaVinci Resolve or Final Cut Pro open the MXF I make here?

Yes for both, with caveats based on essence codec. DaVinci Resolve reads MXF wrapped MPEG-2, DNxHD/HR, AVC-Intra, and ProRes. Final Cut Pro reads MXF via its Pro Video Formats package (free from Apple) and prefers ProRes-in-MXF or DNxHD. If you target FCP, choose H.264 inside the MXF if ProRes isn't offered, then transcode to ProRes inside FCP for performance.

Is there a file size limit?

XConvert processes files on its servers and deletes them automatically after a few hours. A one-hour 1080p WTV recording (typically 4-7 GB) converts without issue on a modern laptop. If you need to chop a multi-hour recording, use Trim to extract scenes first, or see Trim WTV for trimming without re-encoding.

What if I need a different output format?

For a non-broadcast edit, WTV to MP4 gives you an H.264 file that plays everywhere. For Avid-friendly QuickTime instead of MXF, try WTV to MOV. For audio-only extraction of a recorded show, WTV to MP3 or WTV to WAV pull the soundtrack out without the video.