Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Dubious Origins --

I already had the Best of MasterCook version 5.0 and assumed that by version 9 there might be enhancements to gain by upgrading. WRONG! Granted the publisher changed, but I absolutely no benefit to upgrading. As a matter of fact I suspect the product was a knock-off as the CD cover was printed in black and white and looked shoddy. What a shame. Version 5.0 was absolutely great and I would have loved to be able to share that now unavailable product with friends.