Translating "Plastic Memories" (PS VITA)

[Serj2pl]

Hello. I want to translate the game "Plastic memories" on PS VITA into russian.
Before that, I translated several games on PC and Android.
All game files in bin format (config_body, eboot, font_body, image_body, motion_body, scenario_body, script_body etc.)
But if some of these files is opened in the hex editor, then the file header says:
6D 64 66 00 | mdf

Can you please tell me how to open this archive?
Thanks for help!

Link to archive with files:
https://www.dropbox.com/s/kqs8vzwyx4kvt ... e.zip?dl=0

[GHFear]

provide sample file please

[Serj2pl]

provide sample file please

[aluigi]

As far as I know the only tool is exm2lib but you need the correct key:
http://asmodean.reverse.net/pages/exm2lib.html

[Serj2pl]

As far as I know the only tool is exm2lib but you need the correct key:
http://asmodean.reverse.net/pages/exm2lib.html

Thanks. But how to find this key? I tried to open the eboot.bin (and other files) in IDA Pro - but I found nothing like a key.

[aluigi]

Take a look at this topic if it can give you some hints:
viewtopic.php?t=7898

[Woqux02]

The game-key is 2shj693vwue5t, And its easy to find. Just use WinHex or other tool to open eboot.bin(Binary) and search 'init' then u can see words like 'init-DLC', after that are key.
Hope i can help you