Convert any video file to FLV format online for free. Fast, secure, and easy-to-use video to FLV converter with no software installation required.
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Max file size: 50 MBMax duration: 30 min
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Works directly in your web browser. No software download or installation required.
Drag and drop your VOB file or click to browse. Supports files up to 1GB.
Select FLV as your output format and click convert. Our servers will process your file instantly.
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How the two formats differ on the things that change your result.
| Specification | VOB (source) | FLV (result) |
|---|---|---|
| Container | DVD-Video (MPEG-2 PS) | Flash Video |
| Developed by | DVD Forum | Adobe (Macromedia) |
| Introduced | 1996 | 2002 |
| Video codecs | MPEG-2 | H.264, Sorenson Spark, VP6 |
| Audio codecs | AC-3, DTS, LPCM, MP2 | AAC, MP3 |
| Max resolution | Standard definition | Full HD (1080p) |
| Typical bitrate (1080p) | 4–9 Mbps | 1–8 Mbps |
| Multiple audio tracks | Yes | No |
| Subtitle tracks | Embedded (soft) subtitles | Not supported |
| Chapter markers | Yes | No |
| Streaming optimized | No | Yes |
| Licensing | Patents expired | Proprietary |
| Plays natively on | Needs a player: macOS, Android, Windows | Needs a player: Windows, macOS |
| Best for | DVD archives, home theatre, legacy archives | legacy archives, web archives |
This is a full transcode rather than a container swap, because MPEG-2 is not one of the codecs FLV carries. Every frame is decoded and re-encoded as H.264.
If the source has subtitles baked in as a separate track, they will not survive: FLV does not support embedded subtitle streams.
Alternate audio tracks are dropped, because FLV carries one audio stream where VOB allows several.
One practical gain here: FLV is streaming-friendly, so the converted file begins playing while it is still downloading.
Expect the bitrate to move from roughly 6.5 Mbps to about 4.5 Mbps at 1080p, and file size to follow.
Converting VOB to FLV means moving audio out of the DVD-Video (MPEG-2 PS) container, introduced in 1996, and into Flash Video, which arrived in 2002. The two were designed with different priorities, and that is what determines whether this conversion costs you quality, storage, or compatibility.
Developed by DVD Forum in 1996, VOB stores audio using MPEG-2. That codec choice sets the upper bound on what any conversion can preserve.
FLV, from Adobe (Macromedia) and dating to 2002, uses H.264, Sorenson Spark, VP6 and plays natively on 0 of the six platform categories we track. That combination is usually why people convert into it.
After converting your file, you can use Scriptivox transcription services to convert your audio to text. Perfect for meetings, interviews, podcasts, and more.
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