What application is the best to create ISO from DVD?

[blankito]

Hi,

I'm currently in the process of transferring my DVDs on my hard drive to be able to watch then on Boxee on my ATV...

My problem is that every good application I find (Ripit for example) rip the DVD to a .dvdmedia file, which doesn't work quite well on the Boxee...

I don't want to encode them using Handbrake neither, I want to keep the whole DVD as a .iso file

Any suggestions??

Thanks!