Advertisements So many threads are so old I'm not sure what is current. I have a 12 year old Roamio. Hard drive seems to be failing. I've had tivos for over 20 years, I know the signs. Unit has a 3T drive. Installed shortly after I purchased my tivo. I replaced the factory drive and let tivo download and install the software. I allowed my unit to upgrade to TE4. I want to keep my recordings. Looks like I need to be careful as to what drive. I think I can find a 4T efrx Is that the way to go or will a WD purple do the trick? Is one better then the others. Any chance a WD purple will be SMR? 4T is the biggest drive that will let me easily do what I want. MFS The right program. Any special options? Thanks.