The reason Israel does not release videos is because Palestinians go through the judicial system, have a trial and if found guilty, serve their sentence. They have Red Cross visits, family visits, conjugal rights, medical care and a free education if they want to take advantage of it. Not to mention TV etc.
EU demands zero tolerance towards settler violence; urge Israel to protect Palestinians (Haaretz)
from the article: Gilad Shalit in video: I've been longing for my freedom for a long time