since you won three psps and the batteries lasted you 6 hours that means they lasted 2 hours each? yeah, the batteries on my PSP really suck. its like impossible to watch a movie on it before the batteries go out because you know the batteries dont just automatically start off fully charged so its more like you've got 30 min of time to watch. not like the PSP actually plays DVDs they play those stupid UMDs that fall out and nobody is making movies for it because they're not profitable they just make the DVD and maybe VHS for all the cheap people.
do yourself a favor and get a DS for $100 less, so when the PSP batteries go out after 30 min you can play the DS for the whole rest of the trip.
the graphics are supposed to be better on the PSP but usually are better on the DS. Example, what he'll be playing on his PSP, and what he could be playing on his DS: