WTV to RMVB Converter

How to Convert WTV to RMVB Online

1. Upload Your WTV File: Drag and drop or click "+ Add Files" to load .wtv recordings from your device. Batch uploads work — convert a whole season of recorded broadcasts in one pass. Files stay on our servers; nothing is mirrored to a third-party server.
2. Pick Codec and Quality Preset: xConvert's RMVB pipeline writes RealVideo 1 (RV10) or RealVideo 2 (RV20) — both H.263-based codecs that match what RealPlayer and PotPlayer expect for legacy RMVB playback. Pick a Quality Preset (Highest → Lowest, default Very High) for one-knob variable-bitrate encoding, or switch to Constant Bitrate for a fixed kbps target, Specific file size for an exact MB cap, or Constraint Quality to bound CRF range.
3. Set Resolution and Trim (Optional): Keep original dimensions, pick a Preset Resolution (240p, 360p, 480p, 720p — RMVB was designed for SD playback, so 480p is the practical sweet spot), scale by percentage, or enter Width x Height manually. Use Trim → Time Range to drop the broadcast leader, commercial breaks, or end credits before re-encoding.
4. Convert and Download: Click "Convert" to write the RMVB. Files download individually or as a ZIP — no sign-up, no watermark, no email gate.

Why Convert WTV to RMVB?

WTV is Windows Media Center's recorded-TV container, introduced with the Media Center TV Pack 2008 for Vista and shipped with every Windows 7 Media Center edition as the successor to DVR-MS. It wraps MPEG-2 video, AC-3 or MPEG-1 Layer II audio, EPG metadata, and closed captions — and crucially, a PlayReady DRM flag that ties protected recordings to the originating tuner. Windows Media Center was discontinued when Windows 10 shipped on July 29, 2015; the upgrade installer actively removes WMC, leaving WTV files orphaned on disks that no longer have a native player. Converting away from WTV is usually the only path to keep watching those recordings.

RMVB (RealMedia Variable Bitrate, introduced by RealNetworks in 2003) is itself a legacy format, but it remains the lingua franca of pre-2015 Chinese TV-drama distribution and a lot of fan-archived broadcast content. Reasons to land WTV recordings as RMVB:

• Pair WTV archives with legacy RMVB players — PotPlayer, KMPlayer, MPlayer, and RealPlayer SP all open RMVB natively; some older PMPs (Cowon, iRiver) and region-specific set-top boxes only accept RealMedia.
• Match the rest of a Chinese-drama collection — episodic libraries ripped from CCTV or Hunan TV in the 2000s are overwhelmingly RMVB at 320–512 kbps; a converted WTV slots into that taxonomy without re-tagging your media manager.
• Smaller files than MPEG-2 source — broadcast WTV runs roughly 8–15 Mbps for 1080i ATSC content; RMVB at 512 kbps VBR drops a 1-hour show from ~5 GB to ~250 MB with acceptable SD-grade quality.
• DVD-burning legacy — VCD/DVD authoring tools from the Chinese consumer-electronics era expect RMVB input; converting WTV → RMVB is the bridge.
• Subtitle workflow continuity — .srt and .idx/.sub workflows mature around RMVB; many fan-subtitling pipelines still target the format.
• Strip DRM-free metadata in one step — unprotected WTV (over-the-air recordings, since OTA broadcasts don't carry the Broadcast Flag in the US) re-encodes cleanly; the converter drops EPG and tuner-bound metadata that confuses non-Microsoft players.

If RMVB isn't a hard requirement, modern containers are almost always the better archival choice — convert to WTV to MP4, WTV to MKV, or WTV to AVI instead. Need the reverse direction later? Use RMVB to MP4.

WTV vs RMVB — Format Comparison

RealVideo Codec & Quality Guide

xConvert's RMVB encoder exposes the two H.263-era RealVideo variants. Both write .rmvb containers, but software-decoder support differs.

Note: RealVideo 3 (RV30) and RealVideo 4 (RV40), the H.264-derived variants, are not exposed in this converter; if you need those, encode with the official RealProducer SDK or downstream tools.

Frequently Asked Questions

Why convert WTV to RMVB instead of MP4 in 2026?

For most users, MP4 is the right answer — it plays on every phone, browser, smart TV, and editor. Pick RMVB only when you're feeding a specific legacy workflow: a Chinese-drama library already standardised on RMVB, an early-2000s portable media player that refuses MP4, or a Linux/Wine RealPlayer setup. If "I just want to watch my recorded shows on my phone," use WTV to MP4 and skip RMVB entirely.

Will DRM-protected WTV files convert?

No, and this is the single biggest gotcha. Windows Media Center recordings made from CableCARD tuners or premium cable channels carry PlayReady DRM that ties the file to the recording PC's hardware ID. Even on the original machine, the conversion will fail or produce an empty file because the decryption key isn't exposed outside WMC. Over-the-air ATSC recordings in the US are DRM-free (the FCC's Broadcast Flag was struck down by the DC Circuit in 2005), so they convert cleanly. If your .wtv plays on the recording PC but nowhere else, it's DRM-locked.

What's the difference between.rm and.rmvb?

.rm is the original RealMedia container, designed for constant-bitrate streaming over 1990s dial-up — every second of video gets the same data budget. .rmvb is the variable-bitrate extension introduced in 2003 for local file storage: complex motion scenes get more bits, dialogue close-ups get fewer. RMVB files are typically 20–40% smaller than .rm at equivalent perceived quality, which is why local distribution moved entirely to RMVB after 2003.

Will the closed captions from my WTV recording survive?

Generally no. WTV embeds EIA-608/708 closed captions as a side data stream; RMVB doesn't have a standard caption track. If captions matter, export them as a separate .srt first (Subtitle Edit can pull captions from WTV directly) and mux them with your RMVB player at playback time, or hard-burn them into the video before conversion.

My WTV is 1080i and I want RMVB — what resolution should I pick?

Drop to 720x480 (NTSC SD) or 720x576 (PAL SD). RMVB was specified for SD playback and its codec efficiency falls off sharply above 720p — you'll get larger files with worse perceived quality than a 480p encode at the same bitrate. If you genuinely need HD, use MKV or MP4 with H.264/H.265, not RMVB.

Why are my converted files much smaller than the source WTV?

That's expected and normal. WTV stores broadcast-grade MPEG-2 at 8–15 Mbps for HD or 4–6 Mbps for SD; RMVB targets 256–700 kbps VBR. A 1-hour HD WTV recording at 12 Mbps is ~5.4 GB; the same hour at RMVB 512 kbps is ~230 MB — a 23× reduction. The quality drop is real but is usually acceptable for archival viewing of broadcast content that was never above DVD resolution after MPEG-2 compression artifacts.

Can I still play RMVB on modern devices?

On desktop, yes — VLC (cross-platform), MPC-HC, and PotPlayer all decode RV10–RV40 natively. On mobile, VLC for iOS/Android works, and MX Player handles RMVB on Android. What doesn't work: smart TVs, browser HTML5 <video>, Chromecast, AirPlay, and most modern editors (Premiere, Resolve, Final Cut). If you need any of those targets, transcode RMVB → MP4 afterward with RMVB to MP4.

Does Windows 10 or 11 play WTV natively?

No. Microsoft removed Windows Media Center entirely when Windows 10 launched on July 29, 2015; the upgrade installer actively deletes any prior WMC installation, and Windows 11 has never shipped a built-in WTV player. The Movies & TV app and Media Player won't open .wtv files. To watch a WTV recording on a modern Windows machine you either need a third-party player (VLC handles unprotected WTV) or a converted copy in a modern container.

Is there a file size limit?

XConvert processes files on its servers and deletes them automatically after a few hours. If you have a 4+ hour .wtv to convert, split it with Video Cutter first, then convert each segment.