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Do JPG Images Degrade Over Time? Is there some type of JPG degradation just because you view them on your computer?
No. This is a pretty common misinterpretation. JPG images that are never opened in Photo Editor such as Photoshop and resaved, will never degrade over a million years. It is only in the resaving process that the images are re-compressed and, in the process, the image pixels do degrade just because of the process of compression. In the compression process, some data composing the picture is lost. This is called lossy compression. Watching the images on your DVD player or on your computer will not cause any degradation at all. Over time, disks will eventually degrade. Every few years you should make new copies of yor disks. You should also transfer your images from your disk to some type of hard drive or thumb drive, just as a backup method.
