So I hate hearing the Xbox 360's Disc drive running when I play games. Because of this I install ALL games that use a Disc. Unfortunately in the case of GTA V there is an install disc and a play disc. Rockstar's official website says it will decrease performance if the play disc is installed to the same source as the install disc. Digital Foundry did tests and found installing to a separate source (usb) has the same performance as the disc drive as long as the play disc is installed to that usb where the install disc is on the main HDD. My question is the following : Will a basic SanDisk 16GB 2.0 usb have about the same performance as a disc drive or should I use a real external HDD?