It's a smaller set than the regular hobby but has a few different cards (e.g. this set has a Charlie Batch Star Rookie and a Doug Flutie that the regular doesn't), and besides the obvious "ENCORE" stamping, it has sort of a rainbow shine to it. Think of it as a "Refractor" set that cuts out the less-desired player cards.
There's a 1999 set as well. Besides some players in new uniforms (e.g. Rocket Ismail in a Dallas uniform) and some non-rookies that aren't in the regular set (e.g. Tony Graziani), there are also Star Rookies for Olandis Gary, Terry Jackson, Travis McGriff and Jason Tucker that don't appear in the regular set.
* Ed * L8 * Cards in my personal Collection are unavailable *