The production and distribution of programs to decrypt commercially produced discs would also be prohibited under legislation being prepared by the Agency for Cultural Affairs.
A bill to revise the existing Copyright Law will likely be submitted in next year's regular Diet session, officials said. However, the revision will not stipulate penalties for the act of copying itself, they said.
The changes were proposed by a working panel in a subcommittee of the Council for Cultural Affairs.
Commercially available DVDs and Blu-ray discs of movies and TV dramas are usually protected by encryption systems. But decryption software is widely available on the Internet. Guides to decrypting various types of DVDs are also on sale.
The current Copyright Law does not ban the production and distribution of such decryption software, or the duplication of audio-visual material at home using these decryption programs.
But unauthorized copies of commercially produced films are routinely circulated on the Internet. The film industry says this piracy is damaging their sales.
The revised law would also prohibit production of devices that enable pirated game software to work on consoles.