OT: Converting Help

i need help converting a file from .mpeg format to .3g2 format. what programs are free and can convert files(videos) up to 25 minutes long? i'd purchase a program for it, but it's only a one time use. so it's not worth the money. there's gotta be a good freeware version out there some where. :think:

thanks

I've done that. They all require purchases or are very limited in program abilities.