One common complaint I hear about storing movies on a a hard drive is the large size of the HD movie files. Here are two rules of thumb regarding file size:
- ISO files are exact replications of the Blu-ray disc. These files run about 30-40 GB.
- If you rip out the trailers, the menus, and the extras, you can usually get the file down to around 20 GB.
As I have mentioned before, I convert my movies to HD MKV files. I also rip out all the extra fluff that comes on the disc. I do not want to lose any quality so most of my files are around 20 GB in size. I also like when I select a movie to watch, I do not have to sit through the trailers etc.