When I edit the AVCHD "mts" file with VP,
But VP seems only can render m2ts file !!
Is any different with mts and m2ts ??
Why VP can not render mts file ??
Yea, I don't believe there is any difference. They are both AVCHD files. Cameras usually use the MTS extensions and programs that process them use M2TS. When you burn them to Blu-ray they have the M2TS extension.