Well I do something similar. But I start at Project.
On the Hard drive I just Ingest / Import the camera card structure from and including the Folder "Private">.mts"
I just Import the .mts files to a Bin in the Project Window that has the same naming protocol as on the HDrive. eg Day1 >Card 1 etc...
No problems ever.
and the 700 does do distinct file names.
I think you meant "does NOT do..."