Is a DVD coverted from VHS the same as a DVD I would buy in a store ?
No. Conversion from VHS to DVD uses DVD-Recordable (DVD-R) discs similar to CD-R that are used in a PC. Recordable discs are premanufactured discs onto which the data is burned and is a cost effective way of making a small quantity of DVD discs. The DVD discs you purchase in a store are for large quantity production and use injection molding machines that create the disc with the data already on it.