Originally Posted by William Moates
Since the Reader has a flat file structure, a good question is "how many titles do you want on a memory card?" From what you say, sfernald, 1500 titles is too many, and I agree with you on that. I think the optimum size is between 100 and 200 titles, whoch is 10-20 pages in the Books menu. Multiply that by the average size of file, and that gives you the desired capacity of the card. If you're reading short stories, each story takes less than 100k, so that's 20-40 MB (at 200 titles). Manga, however, takes tens of MB per story, so a 1 GB memory card would hold less than 100 manga books. For that reason, 2 GB seems like a reasonable upper limit for memory cards.
(What can I say, I like doing ballpark calculations.
All of what I said will become moot when the Reader is upgraded to handle folders.
I've been using the 1GB Card for music and graphics files, and the internal memory for books. 90 MB is plenty for books (unless you don't want to attach the reader to your computer frequently).
I ripped a bunch of classical CDs, then used a freeware program to combine all the movements together into one track. So I only have 9 files for Beethoven's Symphonies, for example.
I also have a bunch of Escher grayscale images on the reader to show off the graphic capabilities; anything originally done in gray looks pretty sharp, and even some colour comics look OK on the machine (takes two movements of the joystick to read each page in landscape mode, though...)