Disk Comparison
The discs themselves are where the most definitive differences show up, and in my opinion, this is the most reliable way to determine whether a set is real or counterfeit.
Starting with the label side, the discs from Star Trek: The Next Generation and Frasier, which I know are authentic, have a lighter grey screen print with a slightly textured finish. In contrast, the discs from Star Trek: Voyager and Star Trek: Deep Space Nine are darker in colour and noticeably smoother in texture. It is a subtle difference in photos, but much more obvious when you have them in hand.
On the data side of the discs, the difference is even more apparent. The counterfeit discs have a more reflective, silver appearance, while the authentic discs have a slightly amber tint. Both the TNG and Frasier discs share this amber colouring, while the DS9 and Voyager discs are consistently silver. Given that these sets were produced around the same time and by the same manufacturer, it is reasonable to expect that authentic DS9 and Voyager discs would look similar to the TNG and Frasier ones.
The most important and conclusive test, however, is the disc capacity. Authentic releases use dual layer DVDs, while the counterfeit sets use single layer discs. When checking the discs on a computer, the real ones should show a capacity in the range of about 6 to 8 GB. In my case, the Frasier discs were around 6 GB and the TNG discs were around 7 GB. The discs in the DS9 and Voyager sets, however, were only about 4 GB. This is the clearest indicator that the sets are fake. The packaging for these sets explicitly states that they use dual layer discs, so anything significantly below that range is a direct contradiction.
The reason for this is likely cost. Single layer discs are cheaper to produce, so counterfeiters compress the video files to fit within that smaller capacity. If they had used dual layer discs, it would have made the counterfeit much harder to detect, but also more expensive to manufacture. Because of this compression, the video quality is also affected. While I don’t have a legitimate DS9 complete series set to compare against, I do have the Star Trek Fan Collective releases that include episodes from both DS9 and Voyager, and those are on dual layer disks. Comparing those to the counterfeit discs, the difference in quality is noticeable, with the counterfeit versions appearing more compressed and lower in overall visual quality.
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Front side of Real ST:TNG Disk
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Back side of Real ST:TNG Disk
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| Front side of Real Frasier Disk |
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| Back side of Real Frasier Disk |
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| Front side of Fake ST: DS9 Disk |
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| Back side of Fake ST: DS9 Disk |
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Front side of Fake ST: Voyager Disk
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| Back side of Fake ST: Voyager Disk |
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| Comparing The Front Side of TNG Disk (Real) and The Front Side of DS9 Disk (Fake). The DS9 Disk is Darker |
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| Comparing The Back Side of TNG Disk (Real) and The Back Side of DS9 Disk (Fake). The TNG Disk has an Amber Colour To It |
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| Comparing The Front Side of TNG Disk (Real) and The Front Side of DS9 Disk (Fake). The DS9 Disk is Darker |
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| Comparing The Front Side of TNG Disk (Real) and The Front Side of Voyager Disk (Fake). The Voyager Disk is Darker |
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Comparing The Front Side Of The Disk From All Four Sets | | Disk Information For The Real ST: TNG Disk |
 | Disk Information For The Real Frasier Disk
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 | | Disk Information For The Fake ST: DS9 Disk |
 | | Disk Information For The Fake ST: VoyagerDisk |
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Sources
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