What movie types are giving you the problem?
Have you checked the HDD for errors?
Try to upgrade the player firmware.
thanks baiju for immediate reply
i tried to play 'DvDRip.x264.AAC.2.0.ESub.xMS' file.
i upgraded playon's firmware to latest one,the problem remains.
while the new gui looks cool,there is always a delay while trying to play files.
whenever i switch on, the player tries to list the recently added music and movie files and it would take some 30-40 seconds,only then it would allow you to go to the next action.
i copied the same movie file in pendrive,but the problem remains same.
i am not sure whether this is a problem with my WDD external hdd or play on.
since i am not happy with the new firmware i am planning to use the old firmware itself.
thanks,
Dijeesh.