[leveck]

Then there is the whole stumbling block of user input of a search string.

This reminds me of my former career: I was the senior programmer at my last employer for 6 years before deciding to go back into electronics. VPs were always trying to add things to a project. Sometimes vastly extending the scope of a program, sometimes after most of the code for the original spec was already written.

The capabilities of this reader were known (or available to be known) before purchase for all of us. Buy the product which fits your needs and put an end to the requests for kludgey-shoehorn additions!