maybe some iso tool

ultraIso
powrISO

google find 說是 psp game bin.001 ..
哪位知道下载游戏中有非常多bin档，要怎样合併?

find
here
http://ubuntuhowtos.com/howtos/merge_bin_files
This is rather simple thing to do although it took me some time to find the solution to this problem.
Open terminal and navigate to the folder where your separate bin files are located, type:

cat image.bin.001 image.bin.002 image.bin.003 > image.bin

Ofcourse replace the 'image' with the name of your file.

You can mount bin/cue image using this HOW TO.

If you don't have cue file you can make one like this:

1) Create empty file and name it image.cue (replace 'image' with the name of your image name)
2) Edit this file and inside write following:

FILE "image.bin" BINARY
TRACK 01 MODE1/2352
INDEX 01 00:00:00

Again, replace the 'image.bin' with name of your bin file.