NCH software has a line of photo and video suites that I like. One is called PhotoPad.
hxxp://www.nchsoftware.com/photoeditor/index.html
I mainly use it for cropping but it does have other functions too. You can also go to 'file' then 'save as' and select what format you want to store the image in. The other one from them that I use is Prism Video File Converter.
phxxp://www.nchsoftware.com/prism/index.html
I don't use an i-anything so I use this to convert almost any video format into WMV.
As usual, change the xx to tt to make the links work.
Almost forgot to mention, they're both free!
