Pornographic products have entered the multimedia era without falling behind, and modern transmission tools such as DVDs, computer discs, and networks are providing fertile ground for the survival of pornographic products. The design and packaging industry has also become its right wing. In the early 1980s, pornographic products were still limited to obscene novels, shabbily displayed alongside sidewalk literature. The "peddlers" would be frightened and hide at the slightest sign of trouble.