for numbering continuation of avchd movies need to leave or copy back after formatting file with maximal number in folder \PRIVATE\AVCHD\BDMV\CLIPINF on card.
if multiple cards used for projects - possible to prepare folder structure with files
##000.CPI
where ## must be replaced with card number. IMHO to one card 999 events must be enough.
if multiple cards used for projects - possible to prepare folder structure with files
##000.CPI
where ## must be replaced with card number. IMHO to one card 999 events must be enough.