Motion JPEG
Motion JPEG, full name for M-JPEG, is a video format that uses JPEG picture compression in each frame of the video. Frames of the video don't interact with each other in any way which results in much bigger filesize. Motion JPEG(M-JPEG) is not a standard or even standardized - each vendor has their own codecs and normally M-JPEG files created with one codec cannot be read with other vendor's codecs.