Formats → Verint / Nextiva
Verint and Nextiva recorders. We convert these exports to standard MP4 with a browser-based player, without re-encoding the recorded video.
These write a file with an .avi extension, which makes it look ordinary — then tag the stream with a vendor FourCC. Players open the file, show nothing, and give no useful reason why.
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.
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 8 -l 16 "your-file.avi" # macOS / Linux
certutil -dump "your-file.avi" # WindowsA Verint / Nextiva export begins 41 56 49 20 at offset 8 — the ordinary RIFF/AVI marker — which is the problem: the file looks standard.
Filenames are long and descriptive, e.g. Export__CAM058 PLT2 HP8 TW_16 September 2025114451 4f34421.avi. The container is a real AVI; it is the stream inside that carries a vendor FourCC.
missing picture in access unit / No start code is found — a straight copy into MP4 exits successfully and produces a file that will not decode, which is the worst kind of failure because nothing reports an error.
The recording time is carried in the filename rather than inside the data, and is parsed out and used for the overlay.
Read by ffmpeg reads the AVI; the stream inside needs rebuilding.
The stream is rebuilt so it plays properly in a standard player, rather than copied into a new container where it would fail the same way.
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.
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 .avi 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
Verint and Nextiva recorders. These write a file with an .avi extension, which makes it look ordinary — then tag the stream with a vendor FourCC. Players open the file, show nothing, and give no useful reason why.
Because it is a proprietary Verint / Nextiva 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: missing picture in access unit / No start code is found — a straight copy into MP4 exits successfully and produces a file that will not decode, which is the worst kind of failure because nothing reports an error.
As it stands, .avi opens only in Verint / Nextiva'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.
Send us the .avi 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.