I found these four videos in a folder marked, "Loc1234":
Obviously, the locations in these videos mean nothing to me. However, the logo that pops up at the end of the second video is a recurring image. It was in Harrison's father's diary (Journal, Friday 22.04.11) and it was on the white block in the video RADIO EDIT - which, I assume was posted by Arthurman, although I haven't come across that video on the USB just yet.
Also, the logo was scribbled all over the back of the package that you sent me, so I guess you know what it means.
- A. Friend.