Hi I'm just curious, but when a file gets compressed so that it plays faster on the Bookport, is it re-encoded at the same bit rate as the original file or is a lower bit rate used? If it is re-encoded at the same bit rate, would it be very complicated to give the user an option to encode at a lower bit rate, so using less space on the card? Also, does the bit rate of a file have any effect on the amount of battery usage needed to process the file? I guess what I am wondering is if a lower bit rate uses less battery power? Thanks once again for such a great list. Donna Slater