how to change these files types to a different file type (psx help)

i downloaded arcade party pack and it has 4 file typesccd cue img sub types is there a way to switch them just to bin and keep the cue file also?

You shouldn't have to. Your CD Burning software and/or Emulator should support IMG types. They should support just about every possible CD Image file type.Just keep all the files in the same folder (like they already are) and use the IMG file. That is the CD Image. SUB is the subchannel data (usually music). CUE is the CD's CUE sheet, which tells the software how the info is organized on the CD.

nm your right i thought i had to fix for some reason oh well...

i think i'm undergo similiar problem. i download some iso with those img ccd and sub file but not any emulator can open it. what should i do?

You can open it just fine in ePSXe.
I have some games that use it and I can play the game, you may need to choose between those files.