| 08 May 2008 03:22 pm |
Entree Rep: 0 Joined: 08 May 2008 Posts: 1 OFFLINE |
I was wondering if anyone was able to figure out how to open .dvr extension format or files? I’m trying to help a friend open this file that he got from a CCTV surveillance camera system. I have tried Windows Media Player, Windows Player Classic, VLC, Quicktime; none of them work, I am not sure where to get the correct codec either. I have tried searching everywhere online, tried several DVR software, but no luck (most are mainly for surveillance servers or cameras with no compatible playback with .dvr, or I am not able to set it up)
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| 09 May 2008 12:04 am |
Regular Rep: 2 Joined: 20 Nov 2004 Posts: 1,190 | .dvr tends to be a proprietary format, playable only with the player or software provided by the company that made it. What I suspect (though I don’t have proof) is that there may be many different .dvr types out there (because companies just append dvr for 'digital video recorder' although there isn’t a set standard).
There’s a few reasons for this. Often times cctv surveillance footage needs to be tamper-proof (especially if used as evidence in a court case). If it’s a proprietary format no one knows about, that likely will fulfill that purpose. Second the files need to store more information than just video. Usually that’ll be time information, camera number or location, and stuff like that. In regular videos you can stamp it straight on the image, but perhaps cctv folks prefer to keep it separate from the video stream as metadata.
The bottom line with all this is you need to know the source of the .dvr file. Most likely you’ll be able to find a player for the file type on the manufacturer’s site (sometimes they require you to login to download this).
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| 11 May 2008 05:55 am |
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| 13 May 2008 01:57 am |
Entree Rep: 0Joined: 16 Mar 2008 Posts: 5 OFFLINE | If you have the system from which the dvr was created, a dvr player provided by the cctv camera system, and you can play it on your computer, you can record the video using CamStudio, which will record whats on your computer screen, and you can box it, crop it, etc. to make it fit to the size you wish. CamStudio has a lossless codec that will record the dvr video almost without loss of quality and convert it to an AVI file, which can be played on windows media player, loaded into moviemaker, on to YouTube, etc.
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