Not sure if this is PS3 specific, I don't have another client to test. I'm using version 4.4.4 of the server.
I have an image directory on the server with several hundred jpegs. When I browse to the directory on the PS3 and scan through it quickly (keeping the down button pressed), the image names display OK but eventually things seem to hang up - the image thumbnails never get displayed and I can't view any images from any directory on the server.
Is this some buffer size problem on the server?