I have 21 videos on a website, I have encoded using the flash video encoder in flash 8. Unfortunately I used the custom settings and selected the ON2VP6 codec - testing in another location I found they had audio but not image - due to not using sorenson codec and the machines having only flash player7. It was in a training setting where it was difficult to install the new player as I did not have admin access on the machines. I want to change the videos so they work on flashplayer 7. Is there any way to do this without going back and encoding all 21 again?

Thanks in advance