After quite awhile of being away, it looks like shagrath and the community have updated PS3 Media Server to Beta Update v1.20 Build 412.
Note: As this is a PC side application, you do not need a JailBroken PS3 to use it with your PlayStation 3 entertainment system.
Recent build changes include the following:
• Double check for Mplayer existence and font generation (useful for latest Sherpya's revisions)
• Ability to shutdown DLNAorgPN automatic support for a given renderer (see DLNAOrgPN attribute in the renderer conf file)
• Some hack stuff for mpeg2 remux on Bravia TVs
• RAW generation fixed
• Custom mencoder quality settings for a given renderer
Not sure what changed in 412 specifically though, all I can find is "small change" (suspect a bug fix).
PS3 Media Server Beta Update v1.20 Build 412 (Windows)
PS3 Media Server Beta Update v1.20 Build 412 (Linux)