I have the pro action replay version 3.34, ps2 model SCPH-79001 ps2 memory card obviously, a wintec filemate pro usb flash drive (8gb) a jWIN flash drive mp3 player combo (1.7gb) a psp.
I followed the freemcboot armax guide and it seem to still be running into trouble. the filemate pro usb flash drive seems not to be recognized when I go to media player I checked on memory card transfer portion and seems work for about 4 seconds disappear for about 10 seconds and reappear. The psp and weird mp3 usb flash drive seems to be only ones consistently working. Yes I formatted it to fat32 each time. It seems with every method I can get it to display on media player but once I go load it screen goes black. Any advice extremely appreciated. (I know my ps2 capable of running free mcboot since i had soft modded memory card that worked fine but I lost it just trying to generate a new one.