in germany, there are 2 levels of index.
A: cant make ads for it, can't buy it in stores as normal purchase, as it can't be put on shelfes. but, it is ok to buy/sell it "under the table".
B: forbidden. not allowed to sell it at all, and if e.g. police finds it in your apprtment, they are allowed to take it and it is destroyed.
it's similar with movies.
as i said, i totally agree that certain symbols are removed, but i just don't understand the change. e.g. movie "evil dead", 20 years completely forbidden, now released as FSK 16, which is the same level as "jaws"