There are a lot of different types of video quality out there, and it can be hard to keep track of all the acronyms and technical jargon. In this post, we’re going to break down the difference between two common types of video quality: HD and Cam.
HD video is short for High Definition. HD video is a digital video format that has a higher resolution than standard definition (SD) video. HD video is typically captured at a resolution of 1280×720 (720p) or 1920×1080 (1080p), although there are also 1440p and 4K resolutions.
Cam video, on the other hand, is short for Camera original. Cam videos are unedited videos that are directly recorded from the camera onto a storage device (usually a DVD or Blu-ray disc). Cam videos usually have lower video and audio quality than retail DVDs or Blu-rays, but they can be useful for making backups or for sharing online.
Frequently Asked Question
What’s the difference between HD and Cam?
Which is better AHD or CVI?
All HD cameras are megapixel but not all megapixel cameras are HD. While standard definition cameras (e.g., analog cameras and 4CIF IP cameras) have no more than 400,000 pixels, all megapixel cameras (including HD) have 1,000,000 or more pixels.29 Jan 2009 
AHD performs better than HD-CVI & HD-TVI but still lacks in overall image clarity. 
In conclusion, the difference between HD and Cam is significant. HD provides a clearer image, while Cam offers a more affordable option.