EXIF Defined:
However, the EXIF data for that image shows that it was created at a time and date that are inconsistent with the time and date of the play in question. So not only can the EXIF data be useful for determining technical data about an image, it can also cast light on whether to believe what you're seeing...
Hope that helps.
A little more layman....I think.
The keywords are METADATA TAGS and are very common with music, video and picture files, more so with different codecs than others, and are automatically a part of the file. Most of the time you can view
basic information about a file simply by right clicking your mouse on the file and selecting properties/details.
Metadata tags in .Mp3's are called ID3 and has information such as the title, artist, album and bit rate. Most people don't know the term ID3, but know those tags are there because many music players use them when the file is playing.
When you look at a picture in most image software you can view the time taken, shutter speed/Exposure, time and date. These metadata tags are made by the camera and built into the image file of most file types, like JPEG. If you want to fill in the name for copyright purposes, you need to fill that in later with software, or at least I haven't found a way to program that on my camera. This is your EXIF, just like the ID3 on MP3 files. METADATA TAGS.
Since 90% + of these tags were not created by the user, but the camera automatically, the date and time may be incorrect due to time zone, not setting the correct date in the first place.
Also,
these tags can be doctored. So you can create a fake image and set the date to look like it was taken before the game. You can find this software on the internet.
So music and image file types have Metadata tags built into them automatically for the most part. If you want to add additional information, you need to do that with software. If you want to manilulate the automated data you can do that too. So like with anything on the internet, nothing is full proof.
