I was wondering what some people may recommended for one or two high capacity hard drives that will have low write speeds (namely write once or twice) for a file with more focusing on reads. These hard drive(s) will be used to replace and upgrade my existing home server which mainly consists of tv and movie shows. I have no issues with Seagate as I have a 4TB one that's been holding strong for several years along since 3 2TB Western Digital Greens as to say I have no bias against one or the other.

If these aren't native USB drives, you can tear apart these for probably the best value http://www.amazon.ca/gp/aw/d/B00J0O5R2I/ref=mp_s_a_1_3?qid=1442228135&sr=8-3&pi=SY200_QL40&keywords=5tb&dpPl=1&dpID=41vl1bc6VdL&ref=plSrch

Though doesn't that make warranty or RMA more difficult?

I believe, for most of them, yes