How to correct SD card reader problems for Spider Jam.
First you can ONLY record using 1 Gig disk. You may use 2 Gig but only for reading.
If you are getting a card reading error that says card is not found you might have to reinstall the upgrade for 2.09 I think it is. Mine came with it but when I upgraded firmware it went away. You must download the fw.bin file onto your computer and move to SD disk. The disk SD disk MUST be formatted as FAT (default) using 32 kilobytes which is NOT THE SAME AS FAT 32.
Put disk in AMP and power on holding the SAVE key to boot from the disk then upgrade. If you are saving WAV files from your computer to the SD disk always use MONO WAV 16 bit PCM.
I have used San Disk and Transcend. The AMP does not like to format the 2 Gig so use your own computer to do so.