What does RC 1 mean

RC1 means remote control 1, with this unit you can set up 3 different remote control codes. Refer to page 21 of the owner's manual.

RC means REGION CODE - Depending on the numbering, it means that your DVD will only play in countries designated by the code.

Example

RC 1 means Region Code 1...... This disc will play in dvd players in Canada, United States, U.S Territories , Bermuda.

RC 2 = Western Europe, incl. United Kingdom, and Central Europe; Western Asia; including Iran, Israel and Turkey, Egypt; Japan, South Africa, Swaziland, Lesotho; French overseas territories

RC 3 = Southeast Asia; South Korea; Taiwan; Hong Kong; Macau

RC 4 = Mexico, Central and South America; Caribbean; Australia; New Zealand; Oceania;

RC 5 = Ukraine, Belarus, Russia, Continent of Africa, excluding Egypt, South Africa, Swaziland, and Lesotho; Central and South Asia, Mongolia, North Korea.

RC 6 = People's Republic of China, Hong Kong

RC 7 = Reserved for future use (found in use on protected screener copies of MPAA-related DVDs and "media copies" of pre-releases in Asia)

RC 8 = International venues such as aircraft, cruise ships, etc.[1]
RC ALL means all 8 flags are set and can play on ANY player
0 or no region means no flag is set can be played anywhere or flags 1-6.

I hope this helps.