Read the following short text, then select which proposition(s) is/are true:

For an enthusiast, collecting

and playing the old arcade games has nostalgic value, like someone who grew up

in the 1950s and listens to old 45s and restores old cars. But in the game

industry, fans who trade old games are considered as little better than

criminals. Most game programs are copyright, and some companies have threatened

to sue websites if they distribute their games—even for free. A number of big

websites were shut down when the Interactive Digital Software Association, a

body which represents computer games manufacturers, threatened legal action.

However, most of the old arcade games remain freely available from websites

outside the US.