Free software for viewing/converting AVCHD [closed]
HandBrake will convert AVCHD Lite (720p) format to AVI, MP4, MKV and OGM
as for playback, use ffdshow or even better, CoreAVC (not free though).
the nororious AVS Video Converter also claims to to be able to convert AVCHD into a number of different formats. (mov/mpg/avi/mp4/flv/3gp/rm), but i will not provide a link and you gotta be out of your mind if you even think of installing anything AVS! :)