The PS3 does not support the mov files that the canon uses but it is my understanding that they can be re-wrapped without transcoding the video so that they can be played back.
The canon files are H.264 which the PS3 does support.
Renaming doesn't work and I've tried ffmpeg but the output files won't play on the PS3.
There have been reports that Quciktime PRO will convert, but just as many posts saying it doesn't work so I'm not going to waste my money unless someone can confirm or test for me.
Any help would be appreciated... giving the popularity of these devices I'm sure it must have been solved by someone who values a quick high quality result.