Agreed. I've personally ripped like 10-12 games at a time back to back but there are some people who don't want to use their drive what so ever.
Even less likely to fail... USB powered by bus --- no heat buildup like say inside a tower. OP: take a grain of salt with any reply you get here... for example, Marketpantry's contribution (no offense, MP --- but experience with PCs for years has taught me otherwise).
I know you were asking from a external standpoint, I was making a comparison to the much-cooler external choice as opposed to an internal. I was saying external (typically, although in your case sounds like you got a lemon) if anything is even more reliable than an internal. I think you misread or I wasn't clear enough, apologies; I also missed you were in fact, the OP lol.