Its a shit change to AVCHD isnt it mate? We use AVCHD at work and have to back everything up. Pro tip, you can right click on the avchd file, and click show contents, then do the same for the next one, and you should find your stream folder with all the .mts files.
You dont need any silly software to do it, finder can get into the AVCHD file by itself, and alot quicker than any of those programs will.
Good luck