Leo didn't "download" it from the internet; he "downloaded" it from the past. He dragged the file from the PSP window to his desktop. The progress bar crawled. 10%... The disc drive whined. 45%... The rain outside picked up.
Rarely. Some universal .bin files exist, but compatibility is low. Per-game .bin files are ideal. umd data.bin download
Your PC will now recognize the physical UMD disc as an external drive. Open the drive, copy the .iso file, and paste it onto your computer's hard drive. Leo didn't "download" it from the internet; he