You can access files and directories on removable media as with any other file system. The only significant restrictions are related to ownership and permissions.
For instance, if you copy a file from a CD into your file system, you are the owner. However, you won't have write permissions because the file on the CD never had them. You must change the permissions yourself.
Ensure that the media is mounted.
$ ls /media
The ls command displays the contents of a mounted media. If no contents are displayed, see How to Access Information on Removable Media.
(Optional) Copy the files or directories.
For example, for a DVD, you would do the following:
$ cp /media/sol_10_1008_sparc/Solaris_10/Tools/add_install_client . $ ls -l -rwxr-xr-x 1 pmorph gelfs 64065 Jul 25 2008 add_install_client