I upgraded from a Droid 2 to a Droid Razr Maxx HD phone. The Droid 2 lasted me just over 2 years - I guess it was time for an upgrade

Anyway, I'm trying to understand the folder structure on the internal card and whether or not I have access to "Apps" and "System data". Using an app called DiskUsage, I see the following 3 top level directories on the internal card.
1. Apps
2. media
3. System data

When the phone is connected to a PC, I only see the contents of "media" - I don't have access to "Apps" or "System data". Probably because it is connected using "MTP" - media transfer protocol.

The file manager I'm currently using is called X-plore, but it does not see the above 2 directories. Maybe I don't really need access to them, but was wondering how I could explore those contents if I wanted to.

Thanks!