um so i used 2 run on nero OEM but i got 7 ultra edition instead...n i had previously burned a multisession data dvd using OEM but wen i tried 2 burn more stuff on the dvd using 7, it burned but now i cant read any of the data from the previous sessions, only the new one so if neone can tell me how 2 recover them and also, how i can continue, correctly so that i wont get the same problem, a multisession previously recorded with OEM does that make sense? or do i need 2 reword my question? im not sure if i explained it rite.....help would be much appreciated, thanx