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Formats → Bosch / DIBOS

Convert Bosch / DIBOS .XI1 to MP4

Bosch and DIBOS site recorders. We convert these exports to standard MP4 with a browser-based player, without re-encoding the recorded video.

Why it will not play

Long recordings are split into numbered segments. Converted individually you get a folder of fragments; joined naively you get them in the wrong order.

The usual result is that the footage exists, is perfectly good, and cannot be watched by the person who needs to watch it — because the only software that opens it is the manufacturer's own, it is Windows-only, and the machine it needs to run on is locked down.

Is this actually your format?

Extensions get reused and renamed, so the reliable test is the first few bytes of the file. On any machine, without installing anything:

xxd -s 0 -l 16 "your-file.XI1"    # macOS / Linux
certutil -dump "your-file.XI1"     # Windows

A Bosch / DIBOS export begins 00 00 00 10 27 — a length-prefixed SPS followed by NAL type 0x27.

Long recordings arrive as numbered segments, with the export's own timing carried in a separate file alongside them rather than inside the video.

What you see when it does not work

A folder of numbered fragments, each a few minutes long, with nothing to say what order they belong in.

Getting the clock right

Timing is reconstructed from the metadata the export carries alongside the segments, rather than guessed from the filenames.

How it is read

Read by own parser. ffmpeg cannot open this container at all, which is why the ordinary tools a customer already has produce nothing from it. We read it ourselves. The source-side integrity digest is therefore taken from the extracted stream, since that is the only point at which the original picture data can be measured.

Segments are rejoined in recorded order into one continuous file per camera.

The coded video itself is copied, never re-encoded. That is the point: what you receive is the recorded image, not a compressed copy of it.

What comes back

One standard MP4 per camera, a browser player with every camera on a shared timeline, and a certificate digesting the coded picture data before and after — which match, because the video is copied rather than re-encoded. What every conversion includes → · How the check works →

One credit converts up to 4.7 GB. Your first conversion is free. Pricing →

Not sure whether yours will convert? Send us one .XI1 export that has given you trouble. We will tell you whether it converts, usually the same day, and there is no charge for finding out.

Try it — first conversion free   or email enquiries@veriframe.co.uk

Questions people ask

What is a Bosch / DIBOS .XI1 file?

Bosch and DIBOS site recorders. Long recordings are split into numbered segments. Converted individually you get a folder of fragments; joined naively you get them in the wrong order.

Why won’t my .XI1 file open in VLC or Windows Media Player?

Because it is a proprietary Bosch / DIBOS format. General-purpose players such as VLC, Windows Media Player and QuickTime are not built to read it and usually show nothing or refuse the file. In practice: A folder of numbered fragments, each a few minutes long, with nothing to say what order they belong in.

How do I open and play a Bosch / DIBOS .XI1 file?

As it stands, .XI1 opens only in Bosch / DIBOS's own player, which is Windows-only and often has to run on a locked-down machine. The dependable way to open it anywhere — any operating system, no install — is to convert it to MP4, which is what we do. The recorded video is copied, not re-encoded, so what you watch is the recorded image itself.

How do I convert Bosch / DIBOS .XI1 to MP4?

Send us the .XI1 export — ideally the whole folder as the recorder wrote it. We convert it to standard MP4, one file per camera, with a browser player and a certificate that digests the coded picture before and after so the result can be verified independently. The first conversion is free. If it turns out not to convert, we may ask for the player it shipped with so we can make it work.

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