With the availability of "The Definitive Collection" DVD, there really is no reason to own "ABBA Gold," unless you need to complete your collection of ABBA videos.  "ABBA Gold" offers up previously unavailable (on DVD) videos for "I Have a Dream," "Lay All Your Love on Me" and the 1992 version of "Dancing Queen."  "Lay All Your Love on Me" is really just highlights from other videos.