Jury is back and the verdict is in:
1.
There is absolutely nothing wrong with that 2.5" HDD that I mounted inside the DVR. It makes no unusual noise, either at startup or shutdown, nor does it have any vibration. Even when I placed my ear right up against it.
2.
I ran four different surface test programs, all returned no errors. (though one crashed after completing around 75% of the scan due to a serious issue with drives over 500GB that I wasn't aware of).
3. I finally used EaseUS to "wipe" the drive (process took around eight hours).
I inspected the chassis bottom and the HDD enclosure to see if it was removed and it didn't appear to be. I also inspected the HDD itself and that didn't appear to have been removed. Any testing had to of been done in the case as is. Checking the HDD enclosure, I tried to lift it away from the bottom of the case, but found it was very secure. I wasn't going to try to force it.
I removed the drive and connected it to my tower directly (SATA) and to my surprise it was shown in Windows, in spite that it was reported (in all those programs I ran) to still be formatted to ext2. I did purposely leave two recordings on the drive.
Further more, it not just was able to be seen, the files themselves (recordings) were listed in Explorer. Not to be outdone by all of that, those files were playable (sort of). They started using Media Player Classic, but broke up and eventual crashed the O/S. I assume this due to a corrected file system on the drive that was repeatedly re-formatting from the lack of proper documentation on the exact procedure of using the internal utility.
This
apparent corrupted formating didn't seem to be a problem in the DVR itself.
If you recall this statement in his 'pass the blame' e-mail that still never addressed the fact my other drive didn't format either;
Quote:
First, we heard all kind of noise coming from your HDD. By further examining your HDD, we found you carelessly put some tapes stick HDD to bottom of PHD-VRX case. However, the tape doesn't cover 100% the area of USB HDD enclosure bottom, and the tape doesn’t firmly secure USB HDD enclosure to PHD-VRX bottom case.
Since the enclosure was never removed as far as I can tell by them,
how was it determined how it was secured? It didn't have to be removed, I already supplied them with a pics of how I mounted it months ago, with a comment by Allen
complimenting me on the install. If it didn't "firmly secure" the enclosure, why can't I easily remove it from the case bottom?
I'm doing dual recordings of over two hours to see if it is a thermal issue, but after running these programs for between 2 1/2 and eight hours, never hearing any noise, I doubt anything will be different.
when I installed them.

Here are pics of the packaging I used. See post #4 for the mounting;
