[herbalist]

If your books are huge letter size, then probably the DR is better. However, if they are mostly A5 size, then the iliad is probably good enough. When you prepare the scans, it is better to so page by page and crop the margins. (of course, you may want to leave some space if you need to annotate...) Since the iliad will read everything into its memory before it opens the file, make sure u prepare the pdf files in smaller chunks (e.g. 50 mb or so), it will save you some time. But the caveat here is that 1) iliad v2 lasts 14-15 hr per charge 2) no more official firmware upgrades from Irex...