Sharing DVD's, Legally

In a day when digital file-sharing can land people in serious trouble, three college students are giving their classmates a more personal (and legal) way to borrow and lend DVD's, through a new Web site called PenguinShare.com.

Mark G. Rosenberg and David R. Garson, who attend Grinnell College, and Daniel F. Turcza, a friend at Yale University, opened the site last month. PenguinShare works on the model of textbook-exchange sites: Students register on their college's network, view a