Good evening, these are 3 DVDs (original, but sent by the company, Sampletekk, as copies; they do this with everyone, it's not that these DVDs are copied and others are original, better to specify this beforehand; they only send DVDs on sticks and not in box sets, which they advertise on their site and more) containing the sounds. You can listen to the demos on the Sampletekk website; just click on 'The Big One' on the dedicated piano sound pages and you will have an overview of the quality of these sounds—excellent, but I cannot use them myself because I purchased this version by mistake, and since I do not own Gigastudio, I cannot use them, so I am selling them (unfortunately) due to lack of use.
Here is the link with the photo from the ad:
http://www.mercatinomusicale.com/mm/a_pianoforte-suoni-gigastudio_id2168536.html