Thanks to Z33, jas0nuk, and |-Anubis-|
here are the RCO's for 3.40 decompressed & recompiled

i thought id post them because ive requested my coldboot & also been trying to research RCO editing as im a total n00bie (@PSP hacking anyway) and found these. apparently, if you use RCO Editor, extract all the files from an earlier RCO that you want, then open the RCO from this rar file below, then replace multiple, you will have a fully working 3.40 RCO & because they are official sony RCO's apparently the PSX error's arent a problem (i cant confirm because i havent tried & dont play PSX games on my PSP)

http://www.sendmeto.co.uk/?rid=rco340