What is the ruling on downloading anime or manga that contain music or images of women from the internet? Is that considered forbidden promotion? What is the ruling on downloading from websites that host copyrighted books? And what is the meaning of the letter "C" found at the bottom of many websites?

It is impermissible to play games that contain music, nude images, or similar religiously prohibited elements. However, if a game is free from such elements, or if these prohibitions can be avoided (e.g., by muting the sound), then it is permissible to play and download it, though refraining from it is better. It is permissible for an individual to download permissible materials, even if this leads to their dissemination and use by others for impermissible purposes. It is not permissible to download materials from websites where the owners prohibit it, as intellectual property rights belong to their owners. The phrase "All rights reserved" or its symbol may indicate an absolute prohibition on downloading, making it impermissible, or it may mean a prohibition on commercial use but not personal use, in which case downloading for personal benefit is permissible.