I am new here and I want to know what is the best way/or what product do I need to download roms to my PS2,Ds,PSP,And Xbox?What type of product or Firmware I need to install in order to download ROMS?
I gather you mean ISO files for PS2, PSP and Xbox?
For PS2 and Xbox -
Get a modchip installed in your PS2 or Xbox. (Other methods around like slide cards etc.., Modchip is best solution)
Use DVD Decryptor to obtain ISO files, or 'obtain' them from somewhere else.
Use IMGburn to burn them to a DVD.
Play game.
OR (if you have old-school PS2)
Buy network adaptor
Install IDE harddrive in your PS2 with the network adaptor
Buy HDloader or HDadvance disc.
Install original games onto the harddrive using HDloader or HDadvance.
Play games from HDD.
For PSP -
Downgrade PSP to version 1.5
Install Custom Firmware.
Rip UMDs into ISOs or 'obtain' them from somewhere else
Copy ISO files to ISO folder on your memory stick
Play games from GAMES folder on your PSP