Knowing if it is a game, a driver package, or a media project would help in drafting a more detailed critique.
Multi-part RARs are only as good as their rarest segment. If part 11 is available but part 12 is missing, the entire set is useless. sc24155-MSMMMv1120900.part11.rar
If you are testing this file for quality or integrity, here is what to look for: Knowing if it is a game, a driver