I have a GVP A2000-030 Combo with a 3.12 ROM in it. I've been trying to get it to work with a PCD-50B and 3.12 recognized the drive, but not an inserted 4 GB SD Card (the PCD-50B lights blink around and stop briefly on the SD card when inserted which tells me it's getting recognized as being there by something).
Are you sure the PCD-50B definitely supports SDHC cards?
