I picked up one of these at a local store, it is just about ten of the tracks off of the MoMD live cd. If you have MoMD, you definitely do not need this cd, its nothing new.
Does anyone have this CD yet? Usually, on the back cover, it gives you the place and date of the show. It could be a different show. There is also a Megadeth Extended Versions from the TWNAH era.