: This is generally the camera's ID number or the specific channel assigned within the recording software.
: The parentheses usually indicate a duplicate filename or a sequential file segment created when a continuous recording is split into smaller parts for easier storage and playback. True_IPCAMB_1_(1).MP4
: If you use a mobile app to manage your cameras, this is the default format used when you "save" or "download" a clip from the cloud to your phone's gallery. : This is generally the camera's ID number
: This often refers to the brand or service provider (such as TrueID TV or True Online in Thailand), which provides integrated smart home and CCTV solutions. True_IPCAMB_1_(1).MP4