I just wish the laserdisc database let you search by "not on dvd" or "with supplemental features not on the dvd." I just found a serious movie store that has a TON of laserdiscs and it would have been nice if I knew which titles were really valuable. I did not find "Song of the South," "E.T." (deleted scenes) and I have dvd transfers of THX 1138 and the Star Wars laserdisc extras. What about the Disney movies, have their dvd's ported over laserdisc extras or not. (I saw many of those)