Re-Installing DVD Software on your PS2
The drivers, or software programs that allow the PS2s DVD drive to boot up, 
are located on the PS2s memory card, and are very easily deletable, 
especially if you have a card that gets corrupted by saving Ridge Racer V data.
We were fortunate enough to get a functional memory card, but we ended up 
having to reinstall the drivers in order to play American DVDs on our system.
 
Its a bit hard to decipher the Japanese utility disc, so we figured it out 
ourselves (with no knowledge of Japanese, mind you) to make your lives a 
little easier. Follow the step-by-step instructions below to have your DVD 
player up and running in no time. 

Delete your DVD driver from the memory card, if it hasnt already been 
accidentally deleted. 

Put your utility disc, which came in a small blue case in your PS2s box, into 
your disc drive. 

When the utility disc loads up, press O (circle) to proceed to the menu screen. 
Choose the last option, the one with DVD in the text. Press O to select it. 

Now youre in the DVD manual. Flip to the 4th page and press O to download the 
drivers to the memory card. 

You will be prompted to answer something in Japanese. Choose the option to the 
left. You will be asked to confirm your selection, choose the option to the 
left again. The download will now start, and will take a minute or so to 
complete. 

When the downloads done, you will see one line of Japanese and an option to 
press X. Press X about 5 or 6 times in order to exit out of the utility disc. 
When youre back into the PS2s browser mode, you should be able to see the DVD 
driver on your memory card. 

Insert a DVD disc and follow the directions to play region 1 DVDs 
Enjoy the movie! 
That’s all there is to it. Remember, unless you have a version 1.00 utility 
disc, the driver wont be able to play American DVDs, since Sonys newer 
releases will have fixed the problem. To check your version, press the 
triangle button on the PS2s main screen that comes up after you turn the 
system on.