actually i have a irex dr1000 and today i got the hanlin v5 personally my impression page turning hanlin v5 is faster than irex and i quiet like it i bought this device vast format support and portable but of course i cannot compare with irex my in the first hand my opinion who wants buy this device they should not wait reading such a huge scan pdf those should go to irex dr1000 but its really good for fiction reading and easy to charge small and easy to carry around and sd card support i guess we bought same guy he sent extra things card reader 2 gb sdcard personally i never think to buy sony