First of all PS3 Mediaserver is awesome !
I used successfully 1.50.0-b2 to steam videos to ps3 and Toshiba Thrive tablet ....
after update to 1.52.0 i can see videos on ps3 but Thrive list video names and folders but is unable to play them.
Same is with 1.52.1 after downgrade back to 1.50.0-b2 it works again.
Probably pretty hard error to duplicate - but i just let you to know.