Each time a media file is repackaged, this table must be updated. The content owner creates a packaged copy for each vendor. For example, if the content owner works with six vendors, the content owner packages a given media file six times. The version that each vendor receives is tracked in the table. Because the content owner will issue licenses for all media files, the license acquisition URL is the same for each packaged copy and points to a page on the content owner's Web site.
Consumers visit the vendors' Web sites, then purchase and download media files.
Each consumer is redirected to the content owner's Web site to get a license. When the license acquisition process is initiated, a challenge string is sent from the consumer's player. For more information about the Key Utility COM object, see the article Using the Key Utility Object to Generate Key Information on MSDN Online. If the content owner provides media files directly to the consumer for download, media files are independent of the vendor. In other words, you cannot tell which vendor is responsible for the transaction according to the media file or its license.