I am using a WD USB 3 "My Passport" attached to my mac as a music source. During play back using Audirvarna & iTunes I am experiencing 5 second pauses. It sorta seems like a buffer got hosed. It doesn't happen to any particular track nor time span and if I transfer music to the internal SSD it never happens. This also happens regardless of me listening using headphones directly off of the MBA or when I have my DAC & amp attached.The tests I have run all say the drive is fine.
My question is this, is this a normal problem with external drives? If not can someone recommend a portable drive I can replace this with? The problem doesn't occur ever minute but enough that it is very annoying. I carry around about 1.5 TB of audio so just using my SSD is out of the question.