How long will my iPod last playing videos?

i have a 60GB ipod, which is the same as urs which means that the depending on what capacity u have, if u have the 60GB u should get a good 11 hours if u do what i do(which is turn the brightness all the way down, turn the EQ off and all the other special features)if u got the 30GB u shoud get a good 6-8 hours i think, i used to have a 30 GB, but i can remember what exactly i was getting on it so i could be off by an hour or so.