On the Linux platform, command-line tools like streamer or ffmpeg could also generate AVI files. For example, the command streamer -q -c /dev/video0 -o /home/user/j_webcam.avi creates an AVI file. With a simple bash script to iterate numbers, it would be trivial to produce files named j_webcam_1.avi , j_webcam_2.avi , etc. While the keyword uses hyphens and spaces, this reinforces the concept that the specific format likely originated from an automated script or a configuration file.
Early Intel-developed codecs commonly bundled with Windows webcam software. J Webcam -9- avi