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Supports: SWF
VIDEO_TS folder and burn with any DVD authoring tool to play on a standalone DVD player.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.
| 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/) |
| 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.
No. VOB is a passive playback container — it contains MPEG-2 video, audio, and optional subtitles, but no scripting. The conversion records the SWF's visual timeline as linear video; any clickable buttons, mouse-driven branches, or ActionScript logic become baked-in pixels. For interactive Flash content, the only realistic preservation path is the Ruffle emulator, not 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.
SWF is largely vector — it can scale to any size without aliasing. DVD-Video is locked to 720x480 or 720x576 and uses MPEG-2 compression with a ~9.8 Mbit/s ceiling. Crisp vector lines, gradients, and small text get rasterized to the fixed grid and then run through a 1990s-era codec, so 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.
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.
The converter renders the SWF the same way a Flash runtime would, so files that play in Ruffle generally convert cleanly. Files that depend on external resources loaded over network (XML data, dynamic image URLs, remote MP3 streams) won't pull those assets at conversion time — only what's embedded in the SWF gets baked into the VOB. For self-contained animations and cartoons this is a non-issue; for data-driven SWF apps it is.
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.
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.
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.
Files are processed on our servers and deleted automatically after the conversion session. 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.