2. The content-wrapper of claim 1 wherein the arbitrary computer-readable format of the content-file includes textual formats, graphics formats, audio formats, and video formats, wherein non-textual file formats are searchable by the plurality of metadata tags bound to the content-file.
2. The content-wrapper of claim 1 wherein the arbitrary computer-readable format of the content-file includes textual formats, graphics formats, audio formats, and video formats, wherein non-textual file formats are searchable by the plurality of metadata tags bound to the content-file. 3. The content-wrapper of claim 2 wherein the arbitrary computer-readable format includes Windows-readable formats when the content-file is created on a Windows-based personal computer (PC), but the arbitrary computer-readable format also includes UNIX-readable formats when the content-file is created on a UNIX-based computer, whereby the content-wrapper binds searchable metadata to content-files on different computing platforms.