I hv a Konica Minolta DiMAGE Z3 digital camera, with 256MB SD card, setting at 30fps and standard quality, ( can see have 4.5 mins recording length ) but the problem is

:- Why my Z3 only allows me to have 15 seconds video recording? it stops every 15 seconds, then I need to re-press the record button to record again.

:- Why could not have continuos recording as claim by Konicaminolta?

Kindly please help and much appreaciated.

TQ...Kenn