Since the first release of JB-199, there have been considerable changes in the main board, CPU, RAM, graphic card, and Rear board of JB-199. The changes are not only in terms of speed and capacity but also in the hardware settings. So, JB-199 after it first design in 2005, was changed to JB-199 II (ver II) in 2008. The new JB-199 II has faster main board, faster CPU, higher capacity RAM, faster graphic card, and more functional Rear board. The original JB-199 is no longer available.
There are two types of upgrading of JB-199.
First is the upgrading of a regular unit with a single screen to a premier unit with dual screens. This upgrade is called Dual Screen Upgrade. It can be done for both JB-199 and JB-199 II.
Second is the upgrading of JB-199 to JB-199 II. This upgrade is done at CAVS by replacing just about all internal parts of JB-199 to the newer components.
For your inquiry of upgrade, please contact firstname.lastname@example.org.
For the songs, they are same and interchangable between JB-199 and JB-199 II. For instruction on transfering files between JB-199 players, see the posting http://cavsusa.com/kb//kb/index.php?action=artikel&cat=17&id=32&artlang=en