I experience issues on a X20 and a UHD2000. Playing back iso (ripped with anydvd), UHD 2000 firmware 2.3.1 and 2.3.3 + X20 firmware 2.2.9 (if i'm not mistaking). image freezes and/or random repeats up to 3 seconds of movie. (bluray 23.98 refresh rate). It's clearly not a network issue. Any others having this issue ?