Oh, no wonder I could not make sense of those files in any encoding I tried! To uncompress them I should use the original bms script, right?
Something else: my listfile differs from your last rootR_mixed in the sizes of Sys/en/SysString.bin and Sys/ja/SysString.bin. Yours says 868 and 3213, respectively, while mine says 17011 and 11433. My values come from the files I copied from the US version's USRDIR\Sys to my us_files folder.
The sizes of my SysString.bin files upacked from the japanese version of the game (688 and 2124) are also different from those in your rootR_mixed, so I don't know where you got yours. Can you think of anything I may be missing?
13261 HeyManHRU
13236 PS3 News
11307 elser1
11169 oVERSoLDiER
9248 GrandpaHomer
8628 Tidusnake666
7968 saviour07
7340 condorstrike
7258 deank
6858 OGroteKoning
25108 PS3 News
5279 Starlight
2964 HeyManHRU
2180 elser1
2174 CJPC
1815 cfwprophet
1756 her0
1573 oVERSoLDiER
1294 GrandpaHomer
1080 barrybarryk




