The Flash is USB read right? Do you have a usb 1.1 or later version card. In any case usb device for saving as you're trying to do is what's causing you problems. It's the flash card not LW that's causing the delay in reading & thus problems with overall performance (thus crashes/freezing!) Flash disks are only intended for quick copying of files ... not to be used as any type of share drive/external drive for any other purpose.