>>4990969"Product ID - Every true JAV movie has a product ID. This is a unique ID for each movie made by a particular company. Sometimes product IDs for different videos from different companies may be the same, but this will usually not be the case. On a video tape cover, you can usually find the ID at the bottom center and/or somewhere along the bottom-left. An example might be "KT-501". Always check the volume label on VCDs; oftentimes it contains the product ID."