i was at circuit city tonight and was going to use a giftcard to buy rammstein's album "rosenrot" but then i saw a copy protection logo on the cd! what does this mean? are those the cd's with special software on them and that don't work on some cd players? i ended up paying $1 extra for the import version because it didn't have that logo. was that a good idea or should i have just bought the us version?