I think there is still the minor complication that Warner is really not involved with any of the work done on MY FAIR LADY. The movie is a CBS property, and it was them that bankrolled Robert Harris and all the restoration work he did on the film. The brief 70mm (and 35mm reduction) reissue in the '90's was released by 20th Century-Fox, who at the time were partnered with CBS for VHS and laserdisc, so they essentially used the reissue as advertising for their homevideo release. WB apparently made a deal with CBS to release MY FAIR LADY on DVD during the period when CBS ended their deal with Fox but had not yet set up shop for their titles elsewhere; the merger with Viacom/Paramount had not yet taken effect, and Paramount was still not quite ready to commit to DVD at the time anyway. You can still find Paramount VHS editions of MY FAIR LADY from the dying days of the format, released after the WB DVD came out, so the WB deal is only for DVD. And to the best of my knowledge, WB did not put any work of their own into the release beyond, say, formatting menus or packaging layouts. As such, I don't know how long WB's rights to handle the movie on DVD last - I have the sneaky feeling CBS might be holding out on them, hoping to reissue their own "re-remastered" edition through sister company Paramount when the deal does lapse.