i'm sure "limited warranty" yun. and anyway, warranty does not necessarily mean "replacement". most stores have a 5-day to one month "replacement warranty". beyond that, you'd have to leave the unit for evaluation and repair. replacement lang kung irreparable, di ba?
![Undecided :-\](https://www.pinoydvd.com/Smileys/default/undecided.gif)
and yup, they do replace defective items... a friend of mine recently had his 1GB usb flash drive replaced at their market! market! branch when the initial unit would fail after getting filled beyond 500MB. as far as i know, the replacement is working fine.