Are you trying to upload them here, to another forum, a web page or ??
That seems to indicate that on whatever server you are trying to upload to, the folder has reached it's allotted limit.
On many servers, individual folders are given a limit below the actual empty space on the hard disk to prevent over runs or one folder from taking it all. For example, if it's a web page you host among many people with pages on the server, you may be limited to X MB for your folder.