So I thought the effect used when warping from the point of view of the ship was always pretty interesting.

The first scene is extra long because it has some /very/ interesting visual effects, some of which are fairly unique. We rarely get to see planetary orbit changes from the point of view of the characters.

In order the episodes are:

Star Trek The Next Generation: The Child
Star Trek The Next Generation: The Schizoid Man
Star Trek The Next Generation: The Vengeance Factor
Star Trek Deep Space Nine: Soldiers of the Empire
Star Trek Deep Space Nine: A Time to Stand
Star Trek Voyager: The Haunting of Deck Twelve