Hello all
I have been looking at this a lot lately.
As far as I can make out there is definitely NO way to view your exported replay saves outside of GT5. They are just files containing info that GT5 needs to run the replay in the game.
I wanted an easy cheap way to put replays up on YouTube for the racing team I am in and I believe I have found the cheapest and easiest way to do this.
I had a Roxio Easy VHS to DVD capture USB stick.
http://www.roxio.com/eng/products/easy-vhs-to-dvd/standard/overview.html
I simply plugged the AV lead (supplied with your PS3) into the Roxio USB then into my PC. I started up the video editing software and low and behold my Playstaion XMB was on my monitor in real-time.
I started GT5, loaded my replay and hit the capture button. It works perfectly.
You will notice that the file size of your exported replays is very small. My 5 lap race was only 4mb, as I said it only contains the information that GT5 needs to re-run the replay.
My captured video (even at a lower resolution) is 400mb.
Just a final few words, Roxio only captures in SD and not HD but it is fine for YouTube as far as I am concerned.
Also using the Roxio software to capture whilst you are playing is not great as there is a slight delay between your input and the race output, so only good for capturing "after the event"
Hope this helps.
It quick, easy and very cheap.
All the best,
GT5_Nifty1
http://gran-turismo-5.webs.com/