just listened to the Bert Smorenburg demo and the XS violin sounds every much as good and accurate as the Roland. What is the big deal ? I dont believe that the above violin demo shows the evidence of gigabytes of sound technology. The rompler did just as good a job using just Megabytes. Have a listen for yourselves http://www.yamaha.com/namm/w2007/videos.html?CTID=5041010&SUB_CAT_ID=5041675&VNM=LIVE&LGFL=N