[a_simm]

Its a copy of all the files on the computer at the time: letters, photos and anything else she was working on or we sent her.

[josephcsible]

Given the name of the discs and the message you got, I'm worried that they might not actually contain user data like that. But anyway, you could always dig into the code with Ghidra or something and try to patch out that check.

[a_simm]

Given the volume of the data and previous experience, the disks would restore the computer into the same state as when the were created, including all the user files at the time.