How to Convert SWF to VOB Online
- Upload Your SWF File: Drag and drop or click "+ Add Files" to select one or more SWF videos from your computer. Batch conversion is supported, so several Flash videos or e-learning modules can be queued in a single session.
- Pick a Quality Preset: The Quality Preset dropdown defaults to "Very High (Recommended)" — fine for most DVD authoring. Drop to High or Medium if you need to fit more runtime on a DVD-5 (4.7 GB) disc, or switch to Constant Bitrate / Variable Bitrate / Constraint Quality if you have a target bitrate in mind. DVD-Video tops out at 9.8 Mbit/s for MPEG-2, so a 4–6 Mbit/s target gives a clean buffer.
- Set Resolution and Trim (Optional): Under Video Resolution, choose Keep original, a Preset Resolution (height-only entries, with the width following the stage's aspect ratio), scale by Resolution Percentage, or set Width x Height manually — 720x480 for NTSC or 720x576 for PAL DVD compliance, which only Width x Height can pin. The Trim panel lets you pick a Time Range so a 10-minute looping SWF can be cut to the exact intro you want on disc.
- Convert and Download: Click Convert. The VOB drops into your downloads — no watermark, no sign-up, no Flash Player required. Drop the file into a
VIDEO_TSfolder and burn with any DVD authoring tool to play on a standalone DVD player.
Why Convert SWF to VOB?
SWF (Small Web Format) was Adobe Flash's container for vector animation, ActionScript, and embedded audio. Adobe officially ended Flash Player support on December 31, 2020, and browsers blocked SWF playback shortly after — leaving thousands of archived animations, training modules, and banner reels effectively orphaned. VOB (Video Object) is the MPEG-2 container that lives inside a DVD's VIDEO_TS folder; it stays universally playable on every standalone DVD player ever shipped, plus VLC, MPV, and most smart-TV apps. Converting SWF to VOB is the standard archival path: trade an extinct browser plugin for a 25-year-old physical-media standard that still works.
- Preserve flash-era e-learning libraries — Schools and corporations spent the 2000s authoring SCORM courses, interactive simulations, and student-orientation reels as SWF. Burning to DVD keeps the legacy curriculum playable on classroom carts long after Flash Player vanished from every supported browser.
- Archive animation portfolios for clients — Indie animators who built their early reels in Flash (or Animate's SWF export) can ship a DVD master to clients or film festivals without telling them to install Ruffle. The VOB output also plays cleanly on Blu-ray players via DVD compatibility.
- Newgrounds, Albino Blacksheep, and Homestar Runner cartoons — these late-90s/2000s web cartoons are vector animations with no video inside, so they can't be converted to DVD here. Play them in Ruffle; to put one on a disc, screen-record a Ruffle playthrough and convert that recording.
- Author training DVDs from existing Flash modules — Manufacturers and trade associations with SWF-based safety and compliance training can re-master to DVD for sites without reliable internet, or for clients whose IT policy still bans browser plugins.
- Build looping kiosk and trade-show videos — A DVD player set to "auto-repeat title" is the cheapest, most reliable kiosk loop hardware. Converting a SWF intro to VOB lets the same animation run unattended on a museum exhibit or trade-show booth display for years.
- Project to old TVs and projectors via composite/component — VOB on DVD plays out of any DVD player's analog outputs, which is sometimes the only way to get content onto a CRT, an older boardroom projector, or in-flight entertainment hardware that has no HDMI input.
SWF vs VOB — Format Comparison
| Property | SWF | VOB |
|---|---|---|
| Full name | Small Web Format (Shockwave Flash) | Video Object |
| Primary purpose | Interactive web animation + scripting | DVD-Video payload |
| Owner / spec | Adobe (Flash, EOL Dec 31, 2020) | DVD Forum (DVD-Video spec, 1996) |
| Video codec | Vector + bitmap, FLV1 / VP6 / H.264 | MPEG-2 (max 9.8 Mbit/s) or MPEG-1 |
| Audio codec | MP3, ADPCM, Speex, AAC | PCM, AC-3, DTS, MPEG-1 Layer II |
| Resolution | Any (scalable vector) | 720x480 (NTSC) or 720x576 (PAL) |
| Frame rate | Any (commonly 12–30 fps) | 29.97 fps (NTSC) or 25 fps (PAL) |
| Interactivity | Yes (ActionScript) | No (passive playback only) |
| Playback today | Ruffle emulator only — no native browser | Every DVD player + VLC, MPV, smart TVs |
| Typical size | KB to a few MB | ~30–60 MB per minute at DVD bitrates |
| File extension | .swf |
.vob (inside VIDEO_TS/) |
DVD-Video Quality & Bitrate Guide
| Preset | Approx. video bitrate | Runtime on DVD-5 (4.7 GB) | Best for |
|---|---|---|---|
| Very High (Recommended) | ~8 Mbit/s | ~70 min | Single short film, high-motion animation |
| High | ~6 Mbit/s | ~90 min | Standard DVD movie length, mixed content |
| Medium | ~4 Mbit/s | ~2 hr 10 min | Talking-head training, low-motion SWF |
| Low | ~2 Mbit/s | ~4 hr+ | Long lecture archives, slideshow-style SWF |
| Constant Bitrate (CBR) | User-set | Calculated from input | Strict-spec authoring, broadcast workflows |
| Variable Bitrate (VBR) | Adaptive | ~15–20% smaller than CBR for same quality | Mixed-motion content, most archival jobs |
NTSC (Americas, Japan) uses 720x480 @ 29.97 fps; PAL (Europe, most of Asia/Africa/Oceania) uses 720x576 @ 25 fps. Pick the standard that matches the DVD player you'll burn to — most modern players read both, but older standalone units only handle their region's standard.
Frequently Asked Questions
My SWF is an interactive ActionScript game — will the VOB still be interactive?
No. VOB is a passive playback container — it contains MPEG-2 video, audio, and optional subtitles, but no scripting. Only the video stream inside the SWF is converted; clickable buttons, mouse-driven branches and ActionScript logic are not carried over, and a SWF that is only a game can't be converted at all. For interactive Flash content, the only realistic preservation path is the Ruffle emulator, not DVD.
What resolution should I pick for NTSC vs PAL DVD?
For NTSC discs (US, Canada, Japan, Mexico, Philippines) choose the 720x480 preset at 29.97 fps. For PAL discs (UK, EU, Australia, most of Asia/Africa) choose 720x576 at 25 fps. Picking the wrong standard usually still plays on modern multi-region players but can cause vertical stretching, audio drift, or refusal-to-play on older standalone hardware. If you don't know the target player, NTSC 720x480 is the safer default — more PAL players accept NTSC than the reverse.
Why does my converted VOB look softer than the original SWF?
DVD-Video is locked to 720x480 or 720x576 and uses MPEG-2 compression with a ~9.8 Mbit/s ceiling, so the SWF's video is rescaled to that grid and run through a 1990s-era codec, and fine detail softens. To minimize the loss, keep Quality Preset on Very High, pick the resolution preset matching your DVD region, and avoid Constraint Quality unless you've tested it on the actual content.
Can I burn the VOB output straight to a DVD?
The VOB by itself isn't a complete DVD — a playable disc needs a VIDEO_TS folder with VIDEO_TS.IFO, VIDEO_TS.BUP, and matching VTS_xx_x.IFO/VOB/BUP files. Free authoring tools like DVDStyler, ImgBurn, or Burn (macOS) wrap the VOB into that structure and write it to a blank DVD-R. If you just want playback on a computer, VLC will open the bare .vob directly with no authoring step.
Does this work for SWF files that need Ruffle to play?
Not necessarily. Nothing here runs Flash: only the video stream embedded in the SWF is converted, so a file that plays in Ruffle but is built from vector animation or ActionScript has nothing to convert — we tell you right after upload. Remote resources (XML data, dynamic image URLs, remote MP3 streams) are never fetched either; only what's embedded in the SWF ends up in the VOB.
What's the maximum SWF file length I can convert in one go?
There's no hard cap on input length, but DVD-Video itself constrains the output. A DVD-5 (single-layer, 4.7 GB) holds roughly 2 hours at standard 4–5 Mbit/s, and a DVD-9 dual-layer (8.5 GB) holds about 4 hours. If your SWF is longer than that, drop to a lower Quality Preset, split into multiple VOBs across separate titles, or use the Trim panel to slice into chapters.
Will the audio track stay in sync?
For SWF files with embedded MP3 or ADPCM audio at standard sample rates (44.1 kHz, 22.05 kHz), sync stays tight after conversion to VOB's AC-3 or MPEG-1 Layer II audio. SWFs authored with stream-sync mode (frame-locked audio) convert most cleanly; event-sync audio that's tied to ActionScript triggers can drift slightly because conversion treats the timeline linearly. If you hit drift, re-export the original from Animate with stream-sync if possible.
Should I convert to MP4 instead of VOB?
If your goal is computer or mobile playback, yes — SWF to MP4 is more efficient and far easier to share. VOB is the right choice only when the target device is a physical DVD player or an authoring workflow that requires the DVD-Video structure. For other Flash-archive paths see SWF to AVI (general editing) or SWF to MPEG (broadcast/legacy MPEG-2 systems). Going the other direction? VOB to SWF is also available.
Is my file uploaded somewhere?
Files are processed on our servers and deleted automatically after a few hours. No account is required, no watermark is added, and we don't index, share, or train on uploaded content. If you'd rather convert other DVD-bound footage, MP4 to VOB and FLV to VOB use the same encoder.