1. Log in to the opac system of the library, enter the title (CD-ROM supporting book) in the title column, retrieve the book, and open the book details page.

2. Enter the relevant page of the book in the Boyun CD-ROM cloud system, and then click the cloud center to find the CD attached to the book from the CD-ROM cloud. At this time, readers can browse the CD mirrored by the server in our library online, or download the CD directly from the remote cloud center.

3. The plug-in software used by Boyun optical disk cloud system is ProG network virtual optical drive. The user's work machine must be equipped with ProG network virtual CD-ROM drive, otherwise the CD can't be browsed online and opened after downloading.