Mencoder + mp4box + PSP + h264. Help Needed

[FlyerUA]

So let's see. I've been using converter called Format Factory to convert my mkv files with subtitles to psp/ipod and so on compatible mp4. FF 2.45(one i'm currently using) have pretty old mencoder (r29352(20090610-gcc-4.3.3)). FF used passing next lines to mencoder and mp4box to make psp compatible mp4:
http://pastebin.com/wLsjMNAi
If I pass these lines to newly compiled mencoder (r33951(20110804)) i will get mp4 which can be played on pc and ipod, but showed as unsupported data on psp.
Here is media info on created mp4:
File using old mencoder > Pastebin link <
File using new mencoder > Pastebin link <
Now is question itself, why is this happening? Why newer mencoder produces mp4 which is shown as unsupported on psp? Is this bug/problem with mencoder or libx264 or is this supposed to be this way? Can this be bypassed somehow to make psp compatible mp4 with these same settings? I hope you can help me. Thanks in advance

[richter03]

You need to convert video H264 format at baseline method for support non Pc player.
Why don't you try Drag drop convert (don't forget to install .net framework 3.5 sp 1 too).

[FlyerUA]

well, thanks, but i just found answer myself. i just needed to add option profile=main. and for psp, bframes should be 0
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