i made a backup with clonecd .. unfortunately it splits up the game into 1gb files .. so i have files like pgr3.000, pgr3.001, pgr3.002 ..

is there a way to stitch these files back into 1 large pgr3.iso file so that i can patch the image with ppf-o-matic ?

Yeah, this is an old dos command. Go into the Dos Prompt and navigate to your directory. Once you are there, type this line.

copy /b pgr3.000+pgr3.001+pgr3.002+pgr3.003+pgr3.004+pgr3.005+pgr3.006+pgr3.007 pgr3.iso

If you typed that whole line correctly in Dos, you'll have one big file. Now don't forget to open up the game.dvd file with notepad and edit the last line. You'll see all 7 of those pgr3.00x files. Delete all and replace the last line with the new file, pgr3.iso. Hope this helps