Hi Terence Thank you very much for the link to the manual - that answers all the questions left unanswered in the quick-start guide. We bought two of these readers yesterday for a trip to NZ (to save weight from carrying books). So far the readers seem to be extremely good value. I have saved pdf files and Word documents to save some more paper being carried on the flight and it has opened all of them. I spent a lot of time trying to work out which was the best value ebook reader and came to the conclusion that the 511EB was excellent value. If I had seen your review first I would have come to that conclusion a lot quicker. Thank you for such an excellent review.