Hoping someone can help.
It seems that the Spider Jam (with original firmware version) can accept only SD cards that are type SC (Standard Capacity) and no bigger than 2gig.
I took an SCHC card and partitioned it to 1.8gig and left the rest unallocated - that doesn't work. The Amp doesn't recognise it.
Given that you can't get these cards any more. What can I do to upgrade the firmware?