Yup the HD version is a superset of the non HD version.
No, there are alternatives. Having said that, they are ok at what they do.
It will rip an exact copy of a disc with any protection removed. However it can't write it back to a disc or transcode it to reduce the space required - say for example re-encoding a dual layer commercial DVD onto a 4.7GB DVD+/-R etc.
Clone DVD will do the shrinking and copying (but only handles unprotected discs). So the combination together work with one making any disk appear unprotected, and the other shrinking it onto lower capacity media than whence it came.
In which case, AnyDVD will do that on its own. Then use handbrake to convert the multi file images created into a single media file.