Parks Associates surveyed 4,000 US households asking them about peripherals on their PCs. CD burners and DVD readers were pretty popular among US households, and 76% still relied on the CRT monitors for their home desktops. 31% said they had LCD monitors, which creates the overlap of 7% of the users, which corresponds to those using dual-monitor setup and the users who frequently have to switch their PCs between different monitors. Almost a third of US households had a DVD writer on their PCs, 17% boasted a TV tuner card.