观点：
JPEG files imported into Director appear to be larger (in file size) than their original size.
事实：
JPEG file has two states, the compressed state--- allows for faster file transfers and less storage space。
the uncompressed state used for displaying and editing the image.
The compressed size is the size shown by Windows and Macintosh operating systems. Director provides the size of the file in its uncompressed state. This information can be valuable to developers because it relates to the amount of RAM Director is allocating to display the image |
