Identifying DVD9

[Rengoku]

Well, my GT concept 2002 is the original chinese version imported from china. Though when I put it in my drive, it only says 3.96 GB. So is this DVD5? or did these guys just decide to put a 4 gig game on a 9 gig DVD9 disc? (As far as I know, the Chinese version is supposed to be a DVD9 disc.)

Here's a shot of the box - if you need to verify if its the chinese version

http://gamerainbow.com/ebay/digimall/PS2-GTCGeneva.jpg

http://gamerainbow.com/ebay/digimall...TCGenevaBC.jpg