When i pasted this code exactly as you wrote it in Expert codec parameters, the PS3 refused to play the files which had those aspect ratios.
When i looked at the Tracer it had written this:
[Thread-4395] TRACE 17:39:47.745 Starting transcode of Test 1.mkv
[win32/mencoder.exe] TRACE 17:39:48.423 Process D:\Program Files (x86)\PS3 Media Server\win32\mencoder.exe has a return code of 1! Maybe an error occured... check the log file
when i checked log file.
I didn't found any useful information i must say and my log file is quite big, so its hard to spot where i might need to look.