Hi, I have some books that are borrowed from the Unabridged library system. It is managed with the OverDrive program and I can read them either with the overdrive program or Windows Media. I guess that the extension is WMA. Can the bookport except this? Do I need to get a player that will play these types? If that is the case, can someone suggest a very good player? I need it to be blind friendly of course. Also, I will need tons of room due to I am a audible book buff because of the BookPort. I really love this bookport. Andy.