1) Is the Dictionary Stand-alone? 2) What is the memory capacity of each of the two external memory chips? 3) The internal memory is really 1.6Gb? 4) How does it work with 1,000 books downloaded? (There are problems with the PRS-505 design, and the PC library management Software keeps getting worse for large book counts, it seems). 5) Can people buy the external case from Sony? 6) Customer Support for the PRS-505 has been spotty. Can you check with Sony and find out about repair turn-around time and cost?