Recently I had a problem Importing Spanned clips which were duplicated, and I was little worried as to how this can happen. I got very helpful guidance from the forum members.
Your image is kinda hard to read.
Here is the same information from Adobe Help:
Adobe Premiere Pro Help:
Importing assets from tapeless formats
Premiere Pro CS5-CS6 Reference
(.pdf 12 MB download)
Thank you Joe
This is Great Forum