They say that today's intellectual property laws simply cannot be applied to digital works.
He began work as a poet, and now has over 30 digital works of art.
They hope either to halt the services or to collect royalties on the digital works being swapped.
But it constitutes "the biggest threat in the future," he said, "as people become more accustomed to getting digital works online."
Some types of works, especially digital works, do not fit comfortably within the categorization system.
The company says those prices should reflect the reduced cost of distributing digital works.
The interviews with these artists reveal an emerging understanding of digital works and the obstacle to their authoring copyright presents.
Since 1997, it has also received deposits of digital works.
Students use Macintosh computers to create beautiful, digital works of art.
Neither is copying digital works for personal use.