Advertisements I don't think the HR20 is built as well as the HR10. My HR20s make noise like a typewriter. The HR10 is quiet and has more of the features I like--suggestions, wish list, etc. If it wasn't for MPEG IV compatibility, I would never have consiered the HR20. I've suffered through lock ups, missed recordings, etc. Admittedly, lately, the software upgrades have improved things signficantly.