I had to send our jbl back to ectaco for repairs because it locked up, so while I am awaiting it's return I come here to get my "fix".
I only keep a few books on the sd card, and as soon as one is read, I delete it. I have it stored on my computer and figure I can always put it back on the sd card if I want to. Seems like the less books on the card, the less time it takes for the jbl to sort through what is on there and the quicker it will load my books. Is that a realistic assumption or does it make any difference at all?