I have about 8 videos that I've edited and am trying to play on my PS3, but I'm getting an error "unsupported file"

I've done some reading and looking around and the PS3 is supposed to play the GoPro studio exports in H.264, but it doesn't...

I've tried downloading a couple converters with default PS3 export settings and they worked but I'm losing some quality when doing this, which makes it not worth the effort to watch on my 1080p HD TV.

Are there some settings I can change on the PS3 to allow the GoPro Exports to play without converting them to a different type of file?

What converters are you guys using?

Thanks in Advance