Is Cremation an option?
Cremation seems to be an interesting topic as the Church used to strongly condemn cremation unless it was strictly necessary (e.g. epidemic or war). However the 1983 Code of Canon Law does not forbid the practice of cremation "unless this is chosen for reasons which are contrary to Christian teaching" (Can. 1176). An example, (although there could be many examples) of a reason contrary to Christian teaching would be preferring to be cremated because you a member of the Masons or have taken to heart some sort of Buddhist belief (Being apart of the masons is in itself condemned by the Church). Funerals can be celebrated in the Church for those members who have chosen cremation in line with the Church.
Also, it is not appropriate to "scatter the ashes" over an area or to keep the "ashes" in an urn in your home etc.. The Church still requires that a proper burial take place, so as to preserve the dignity of the deceased. I have given you what the Church teaches. Now the next paragraph I'm writing will be my opinion on this matter although I place my Faith in Jesus Christ and His Holy Catholic Church and agree with all of the Church's teachings.
In my opinion I think cremation is not a good choice. Although I agree it is not wrong ordinarily, I think cremation doesn't have the same dignity that being buried with the body unharmed has. I recently attended the funeral vigil for a young man (early 20s I think) that died. The church was filled with people mourning and praying the rosary for him. His face was visible from the casket and it was very moving. Also, this week I served at a different funeral where the individual had chosen cremation. A small simple box replaced the traditional casket and it seemed so strange to think that a man was reduced to ashes (although we can recall through this the scriptures saying "You are dust, and unto dust you shall return"). To have the body present though, we can look at the remains and remember the individual much clearer and this can be a symbol for us to pray for them, just as a statue of a saint lifts our minds to that saint and inspires us. To me, leaving the body unharmed seems to have the most dignity and honor possible for those individuals.
What say ye faithful of Jesus Christ?