Usb 1 SUCKS, a theroretical maximum bandwith of 11Mbit/s, practical 3 or 4Mbit/s.
Try and borrow a USB 2.0 (PCI) card. Test it if it actually works on in your system, because most USB 2.0 cards suck as well. Then test the writing speed. Theoretical bandwith speed of USB 2.0 is 480Mbit/sec.
Mind you.. it says bit.. not byte.