bad harddrive block error ?

[the snake]

i went to install a 10,000 rpm 320SCSI maxtor drive that i haven't used in a while, i go to initialize it and i get this error, says something about a bad block in the drives memory, does this mean time for an RMA ?

i kinda wondered why i had it in a drawer, must have forgot it was giving me errors

 

[the snake]

okay i used seatools to format that drive and now it works, but should i trust it now ?

also can anyone explain in laymans terms what this means please, and should i change anything here ?
i tried google but just got confused LOL