Database user detail - UserRecord activity, want to understand

I would like to understand this information write in the windows UserRecord Activity from all database …

Why in this activity , I can see this information .

                                reads        Write    user

06/01/2006 13:49 530 111 Toto/ XXX

because at this time I never reads 530 mails and write 111 Mails …

Can you explain me this ?

thanks …

NF