UPDATE for GoPro Hero2 (like the free one Ford gave out to ST pre-orders in the summer of 2012):Since many of you use GoPro cameras, please be aware that if you try to use the latest version of GoPro Studio (v319) with the latest version of the GoPro Hero2 firmware (v312) it will lose the audio during the conversion process! The 319 version of GoPro Studio was released more than a month ago on 30-Jan-2014, so hopefully they will release a new version soon to fix this major bug.
To check the GoPro Studio version, in Windows Explorer go to the C:\Program Files (x86)\GoPro\Tools directory and right-click on the ConvertGoPro.exe file and select Properties, then select the Details tab and check the Product Version entry.
To check the GoPro Hero2 camera version, connect the camera to your PC, turn the camera on, in Windows Explorer open the drive corresponding to the camera, open the MISC directory, then open the "version.txt" file. It should look like "HD2.08.12.XXX" where XXX is the firmware version.
I hope that helps save someone the waste of time I went through while trying to make a new in-cabin stage3 exhaust sound after symposer delete video.
There is a new version of GoPro Studio out now...v389 (22.214.171.1249). I ran a few tests, and it appears that GoPro Studio v389 works fine with Hero2 firmware v312 (HD2.08.12.312), and does not have the audio bug (dropped audio track during conversion) like GoPro Studio v319. Now that this major audio bug has been fixed, I'll try to shoot some new video to show off how the ST sounds with my current mods (CAI, TBE, symposer delete).