*** “ONE FAIR SUMMER EVENING” Nanci Griffith ; <i> MCA Music Video laser disc ($24.95)</i> : <i> Items in this periodic survey of pop-related books, videocassettes and laser discs are rated on a scale of one star (poor) to five (a classic). </i>

What more can you ask of a video than it turn someone who was only mildly interested in a veteran performer into a fan? Part of the credit on “Evening” goes to director Bud Schaetzle, who has done an excellent job of capturing the intimacy of a Griffith club performance in this modest but winning 45-minute package. But the video’s most important element is Griffith herself. A singer-songwriter whose artful, warm music blends elements of country and folk, Griffith sometimes seems a bit too understated on record, but she blossoms here with a series of songs that are equally rich in detail and spirit.