I have firmware 3.40 OE. I know that with firmware 1.50 could only support MPEG4 at 320x240 & 368x208 768kbps Stereo/128kbps. I know that firmware 3.30 and above could support AVC 480x272 & 720x480 768kbps Stereo/128kbps.

I read that Dark_Alex's 3.40 OE functionality is of both 1.50 & 3.40 (higher resolution video formats). However I have been having a hard time converting my WMVs into PSP compatible video formats. I want the highest/best picture & sound resolution. I have used PSPVideo9, MediaCell, SUPER & AnyVideoConverter. All have failed.

PSPVideo9 just doesn't convert WMVs at all.
AnyVideoConverter at 720x480,768kbps,128kbps doesn't play at all. However at 320x240,512kbps,64kbps it played for 2 seconds before getting a message, "cannot view video".

I don't even think 3.40 OE is capable of playing official 3.40 capable video formats (720x480, etc). Please can someone confirm this, or am I doing something wrong? Also, is M33 series can play 720x480 at 768kbps at 128kbps? If so, what software do you use to convert? And can it convert WMVs?