I have every disk back to 1995
my recollection:
rhe way it worked in 2000 was a prelim disk was mailed in December and a final disk was mailed later ; there were no weekly updates the way TT administers the forms updates today via the internet
so if you have a 2000 disk, if it is marked as “final” , then that is what was used for federal returns
there was a separate desk for “state” - I think all the states were on the one disk; there was no preliminary disk for state so the 2000 disk is the final state disk
