Once a master set of disks has been created, as many copies as needed can be duplicated on demand. Labels can be adhesive or printed direct. If you have a run in excess of 100, it is more economical to replicate from a glass master. This is the master from which all duplicates are pressed. The duplicates are usually called replicated CD-ROMs.
Artwork is required for the CD-ROM label and packaging.
Like any publication, a web site is part of an organisation's public face. Lack of continuing care can reduce the impact and value of even the best-designed and most interesting sites. This, in turn, will reflect poorly on the organisation itself. The ease with which web sites can be updated can be very beneficial. For example, new information can be posted rapidly as circumstances change, and it is easy to correct typographical and other errors.