if you cant afford a dvd writer, you can rip your dvd games and put them on a cd-r ... contrary to popular belief, it's relatively simple. Try checking
http://www.megagames.com/ps2/ps2_guides_files.shtml
...there are tutorials on how to copy cd to cd-r and how to rip dvd to cd-r, ofcourse, the easiest and best way is to copy dvd to dvd-r
..but there are other options.