In particular, I'm looking for information on the following files and folders (as found in the Garmin directory when accessed via MTP):
Adjstmts
ChngLog
FbtBackup (FirstBeat?)
FbtPtdBackup (Primary Training Device?)
HMD (ANT+ EXD / Varia Vision?)
Metrics
Monitor
Otd
PointCache
SQL/bkd0.db
TempFIT
TLG
WBL
unl_bckp.bin