Portrait Films

[spit2000]

I took a couple of short films that are currently in .AVI format. Unfortunately, when I shot them, I used a portrait orientation and now I can't figure out how to rotate them. Anyone have suggestions on software that I can use to change the orientation?

(While it's great fun to watch my husband falling in the snow, it would be a lot more fun if I didn't have to contort my neck sideways to see it!)

Thanks,
Jodi