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== By Other Names ==There are other units by other names, which may even have a different looking front face, which have the same internal board and software. * ANRAN 4 Channels H.264 4CH DVR CCTVIndividual day, or hour recordings cannot be isolated and deleted with this system. This is a foolish limitation that is likely due to the unrefined or incomplete nature of the system software. The oldest recordings are automatically deleted by the system based on disk usage. Reformatting the hard drive can be used as a means to clear all archival camera footage.This device is a CCTV DVR that is designed for that purpose. Although it can be used for other purposes, there are likely better alternatives for those other purposes. There are actually better alternatives for the purpose of being a CCTV DVR also, however, that is discussed in the review. If you have one of these Vonnic units laying around, and you like to tinker, then by all means see what hacking you can do with this little Linux based embedded solid state system.* Macrovision Free digital recorder - convert those old Macrovision copy protected VHS tapes you have laying around going bad to digital format. * Macrovision Free digital recorder - convert those old Macrovision copy protected VHS tapes you have laying around going bad to digital format. Input must be interlaced (not progressive scan.) If archiving from a DVD player configure the player to output interlaced to the composite port or the DVR will display a yellow pscan indicator on the screen.This unit is capable of the above things, however, not an ideal choice. Although, in some cases, it might be the best choice you have depending on your region and budget. These things are not supported by the manufacturer. This unit is capable of the above things, however, not an ideal choice. Although, in some cases, it might be the best choice you have depending on your region and budget. These things are not supported by the manufacturer.