Please help me determine the difference between these! I've looked over many threads but answers are not very clear. I am unsure if people use "chad's videos" interchangeably with coursesaver and the ones on chemistryprep. There is a free version and a subscription version($10/month) on chemistryprep website for gen chem. On the coursesaver website, it is $50/month. I heard that coursesaver is geared towards DAT but has some stuff left out. Whereas chad's videos(free or sub?) covers too much... Supposedly chad had a fallout with coursesaver and he left?? I am extremely confused.... but I had already subscribed to the $10/month chemistry prep one because i assumed that's what people meant and it has 21 chapters... Is it necessary to go through all of them, is there an outline for the sections that are necessary for the DAT? I just want to know if I am studying the right material...Which one do you recommend??