What is the difference between JPEG and MPEG video in digital cameras?

Question

Ok well i am getting my first digital camera, and i don't know anything about JPEG and MPEG.
Which is better JPEG or MPEG video?

Answer 1

JPEG Video
Similar to a digital still picture camera, a network camera captures individual images and compresses them into a JPEG format. The network camera can capture and compress, for example, 30 such individual images per second (30 fps), and then make them available as a continuous flow of images over a network to a viewing station. At a frame rate of about 16 fps and above, the viewer will perceive full motion video. We refer to this method as Motion JPEG or M-JPEG.

As each individual image is a complete JPEG compressed image, they will all have the same guaranteed quality, determined by the compression level as defined for the network camera or network video server.

MPEG
Simply described, MPEG’s basic principle is to compare two compressed images to be transmitted over the network, and using the first compressed image as a reference frame (called an I-frame), only sending the parts of following images (B- and P-frames) that differ from the reference image. The network viewing station will then reconstruct all images based on the reference image and the “difference data” contained in the B- and P-frames.

They both have their place and use. I tend to prefer MPEG personally.

Answer 2

The third and fourth poster are right. The first two don't know what they're doing. Both motion JPEG (AVI) or MPEG are compressed data. MPEG is supposed to be more efficient, but I doubt there's much difference on a cheap camera.

Answer 3

Jpeg is photos only...and Mpeg is video only. The camera will save photos in the Jpeg format and record videos in the Mpeg format.

Answer 4

Avi is the uncooked or uncompressed video, collectively as action jpeg is separately compressed as jpeg-photograph. Mpeg1/2 are compressed AVI varieties and Mpeg4 is the revolutionary test style of MJpeg. high quality distinction is that AVI/mpeg1/2 are those used for the great monitors (taken via videocams) which may be downsized to the smallest reveal like the ipod, collectively as Mjpeg/mpeg4 (taken via digicams & the likes) can in user-friendly terms be used with the likes of ipod monitors, information superhighway streaming, because of the dimensions of document. For abode video clips, 1hour of video needs Disc area approximately 12-15 gigs (AVIs) collectively as mjpeg needs in user-friendly terms 10-20% of that. happy to make it slightly sparkling!

Answer 5

JPEG is for pictures, MPEG is video. Big difference. So go with MPEG.