What Do These Number Mean?

[ClaytonMG]

Ok, someone is going to have to explain to me what the numbers after the resolution mean.

I know what 480p, 720p, and 1080p mean, but what does something like 1080p - 7840x160 mean? That doesn't make any sense. 1080p should be 1920x1080. (Or 1920x1035 for flat, or 1920x816, or 1920x804, or 1920x800 for scope... something like that.) 7840x160 makes it sound like something they encoded at a lower quality and then upscaled to 1080p.

[arthurm]

1080p-7840x160
Pixel resolution video bitrate in kbps audio bitrate in kbps

[ClaytonMG]

1080p-7840x160
Pixel resolution video bitrate in kbps audio bitrate in kbps

Ohhhh... Thanks! I've seen it posted like this a few times now but have been confused.