Ok I have new in March 3018 NUC. It is a real quad core Celeron / 8 GB of crucial DDR4 and a new HGST Travelstar 5K1000 1TB 5400 RPM 8MB Cache SATA 6.0Gb/s. 2.5. This is my TV media box for watching and recording video. OS is Win 10 PRO and the only other thing I have installed is VLC and HD Homerun which I have a subscription to. Previously I was using Windows 8 Pro with Media center with my cable HD homerun Prime. Unlike Media center the new app allows me to sink all my devices to the recording device. This includes my android phones and tablet, laptops and a old windows 10 phone lumia 1520...all running the free HDhomerun app. It worked great for three months and then I started getting stuttering, and freeze ups. The recordings became un watchable with so many skipped frames. I assumed it was the app because my old Media Center PC was still displaying and recording perfectly. I contacted support and they replied

The log data from your DVR indicates extremely long delays in writing to the hard drive. On the afternoon of 9/21, it was taking about 50ms on average for data to get written to the drive, which is a perfectly normal time for a regular hard drive. Get to the evening of 9/21, suddenly it's 1500-2000ms, which is not good. This would typically indicate that either you've got some sort of security/antivirus/antimalware software on the computer that got an update and is now grinding things to a halt, or your drive is dying. If you've got any such software on there (excluding the stock programs from Microsoft, those won't cause this problem), then completely uninstall them and check to see if your issue clears up. If not, then it's probably time to back up your data and look at replacing the drive.
- Silicondust Suppot

this didn't make sense to me because while it is not a performance drive it is a brand new quality 2.5 inch drive that in every other way was working fine and passed all Active Boot drive diagnostics. So I replied and made my case suggesting that they must of been seeing times of auto defrags which are done when no other activity is occurring.
And they replied

The HDHomeRun app on Windows 10, Mac, Xbox One, Android, and iOS buffers live TV through the DVR to allow you to pause and rewind live TV. Therefore if the DVR is having issues, you'll see that on all the clients. If you shut down the DVR, all your clients should magically start working. The problems reported in the logs have been consistently occurring since the time referenced. It's not a defrag issue.
- Silicondust Support

So they are saying that when the apps on the other devices are being used to watch TV all the buffering is occurring on the recording PC = the Travelstar. It could be buffering for three devices in as much as there are three tuners in the HD Homerun Prime. Because it worked just fine for three months I can only assume that the constant buffering slowed down the Travelstar in some way and it can no longer do the job. Yeah I know it doesn't make a lot of sense and if you have a better explanation I would be interested in hearing it.

What I am thinking of doing is replacing the hard drive with a SSD. I was thinking of getting basic reliable Crucial daily driver SSD but then I found a ADATA Ultimate SU650 2.5" 960GB SATA III 3D NAND Internal Solid State Drive (SSD) ASU650SS-960GT-C at a very good price so I am thinking of putting that it. The only experience I have with Adata is with flash drives and MicroSD cards. These days SSD drives are ho hum, the technology is all pretty good and besides I am not looking for a high performance drive so it seems like whatever SSD is going to blow the Travelstar away. Anybody think I will have problems with ADATA? Thanks

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