Downloading a copyrighted movie, regardless of the file format, without the permission of the rights holder is in most countries. While the laws regarding downloading vs. streaming can be complex, and some jurisdictions allow for personal, "fair use" copies, the vast majority of "free" movie sites are distributing pirated material. Doing so can:
: Downloading small video files to a personal mobile device offered a level of privacy that watching a DVD or television broadcast did not, which was crucial for individuals in unsupportive environments.