MIXED MEDIA : *** “HARVEST OF SEVEN YEARS (CROPPED AND CHRONICLED)”, k.d. lang, <i> Warner Reprise Video laser disc ($29.98)</i>

The “candid moments at home” promised on the back cover turn out to be nothing more than lang’s conventional narration, but the “rare live performances and videos” add up to a lively chronicle of the evolution of one of pop’s most electric and independent artists. As the country-accented singer moves through some early Canadian TV appearances to her own stylish videos, she experiments with everything from musical genres to hairstyles. She reaches a soulful peak in her disarmingly intimate version of Cole Porter’s “So in Love” from the “Red Hot + Blue” AIDS charity project.

Items in this periodic survey of pop-related books, videocassettes and laser discs are rated on a scale of one star (poor) to four (excellent).