No. Do not use the 1080p 24p preset. Did you shoot the SD footage with the 2:3 or the 2:3:3:2 pull down setting? If you shot the footage using the 2:3 then use standard NTSC DV preset 29.97 60i(assuming you're shooting in North America). If you shot using the 2:3:3:2 pulldown setting then use the DV 23.976 (24P) preset. 24f in SD mode uses the same pull down methods as the DVX