I wonder where this website resided in, as many countries already made nearly impossible to bypass DRM'ish stuff legally for most of the cases, and also digital

I wonder where this website resided in, as many countries already made nearly impossible to bypass DRM'ish stuff legally for most of the cases, and also digital music are usually "licensed" instead of bought with a tangible CD without explicit licence. (You don't see the "read this EULA" on music CDs, do you?) From their site, "ReDigi(tm) keeps you safe by managing the copyright obligations" ... "removes identified copies" ... I am no legal experts could somebody tell me if this is in fact legal (or not challenged in court) to sell digital music [files] even you have deleted it securely from any of the devices you have access to, say at least in US? (disclosure: I am not in US)