tex_*.bin contains all kinds of graphic files with special encryption. Files can be extracted by this quickBMS script (Thanks to aluigi!). But "reimport" does not work very well. Replaced file size (compressed) is not allowed bigger than original. Force will destroy it. Smaller is OK and load in game normally.
Please help for finding out a proper method to reimport or repack graphic files to bin format. Bytes behind PMAN should be used for pointing to each TDXT's offset address. But I still don't understand its meaning.
Have you tried to edit the file in a way that can be compressed more? For example if it's an image then it's better if you don't make it too complex, it's better to leave it very simple with just few colors.
Remember to remove the files that you have not edited.
Each song has four images. Example after converting to png: http://bin.jvnv.net/f/5AdXx.rar Replacing one must ensure the same number of four images(after compressing) is smaller than original. This is really a little hard. So I think paste TDXT bytes to replace designated area and redefine each TDXT's offset address (perhaps need to rewrite the whole PMAN part) is better..... Is it possible?