Those dynex, which are sold at Bestbuy and futureshop in canada are a surprise bag of a dvd drive. It shows "some" drive on the box, kinda looks like a pioneer or a liteON but it could be anything in the box. Sometimes its a LG etc. Depends if you buy the external model or not. The specs on the box are updated/changed week to week in the stores with a sticker placed over to old info. depending whats in the box at the time. The packaging never changes, just the crappy model that the stock up on and try to get rid of.
If you do figure out what you got, please post the model and brand.
BTW If you need info on dynex drives, youll find that it directs you to the bestbuy head office(s) #