An OS for my mp4 player.
 

I got a sony mp4 player and dont really like the os that much. Can i download another os?
It looks like this one except it says SONY not MP4.
http://upload.wikimedia.org/wikipedi...yer_1_zear.jpg

This is what the SysSet says
F/W version
Core PMA300_010
Date 2006-03-15
FW : SRX-3.5.37
Date : 2006-03-24

e_dmc2, It is not recommended that you try to change firmware it is the quickest way to brick your player as you will see if you browse the Dead Player forum.
Have a look in the Knowledge Base and there are guides on how to extract your firmware with s1fwx and then change the theming in the firmware with s1res.
You will also find a heap of themes in the download section.
It is quite safe to mod your players firmware but once again I do not recommened loading someone elses modded firmware.