Technology marches onward, stubs toe, goes home.

From 15 Tech Concepts You'll Need To Know In 2006 in Popular Mechanics:

Metadata
It used to be that a file was just a file, identified by a name and a three-letter extension. But computer storage has exponentially increased the number of files a PC can access. Programs such as word processors currently collect metadata--literally "data about data"--detailing who wrote each file; music programs such as iTunes automatically tag song files with album details from online databases.

*slams head on keyboard*
*gazes at framed portrait of S.R. Ranganathan*
*reads Svenonius and weeps*