Radiokom, be sure to download files before viewing because Drive mutilates video worse than YouTube.
I don't understand why you should look for adventures where there is no need to look for them. Any non-original OS/hardware/drivers are a potential problem. I've never had the urge to digitize VHS on Windows 10, let alone 11. I don't see any point in it at all, so drivers are not needed either.
I replaced the 2019/Vidbox driver with the 2015/Empia driver on my Windows 7 machine, and I am likely seeing the chroma problem (and solved problem) with my Hauppauge HVR-950 USB device also. I captured parts of an NFL football game (coming from my Zenith tuner into the HVR-950's line input), and though the raw HuffYUV video is an interlaced mess overall (as probably should be expected), I can see obvious places in the 2019-driver capture where the chroma resolution appears to be half of what is in the 2015-driver capture.
I have attached two screen captures of the "zooming/expanding NFL logo" that show the difference very clearly. You all will know better than I do, if this is the same chroma problem.
The captures are from full screen, paused video from two video files played on the same Windows 7 computer, in Zoom Player version 12.5 with its "stock" video and audio decoders and settings. The video display device is Radeon HD 3200 (on-board on the Gigabyte mother board).
Yes, it is clearly visible in those examples (red is great for chroma sub sampling tests), so its likely a driver bug as a newer revisions I posted today fixes it. One thing eMPIA hasn't done is post generic drivers on their website, so its hard to track revisions over the years.
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ChrisW6ATV (12-14-2025)
Mea culpa…
My video samples were taken from the wrong 7800u. Sigh.
I have 2 of them and I used the “new” in the box VCR that obviously needs some attention after sitting for 20 years.
Hopefully I will be able to provide better clips, from the rebuilt 7800u, later today or tomorrow and replace my blurry ones.
Maybe this will aid in sorting out drivers.
There may be a delay as my wife, a teetotaler, gets a liver transplant today. I’m actually typing this from Beth Israel in Boston.
I don't understand why you should look for adventures where there is no need to look for them. Any non-original OS/hardware/drivers are a potential problem. I've never had the urge to digitize VHS on Windows 10, let alone 11. I don't see any point in it at all, so drivers are not needed either.
The reason is, I'm always on the lookout for more modern capture solutions.
As noted in my posts here, I did provide an ATI AIW capture sample for comparison. The reality is machines that can run XP (particularly the ones with AGP) are now past 20 years old in many cases. What was once cheap hardware one could obtain easily for free or close to it, is getting hard to find.
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woko2 (05-13-2026)
The reason is, I'm always on the lookout for more modern capture solutions.
Same.
Quote:
As noted in my posts here, I did provide an ATI AIW capture sample for comparison. The reality is machines that can run XP (particularly the ones with AGP) are now past 20 years old in many cases. What was once cheap hardware one could obtain easily for free or close to it, is getting hard to find.
Not that old required. I build off 2017 hardware now, though it requires forcing install with Integral Edition. The official XP will not install. Hardware dual-boot, SSD, nice peppy modern(ish) speed. The post-capture software sits on the Win10 SSD, capture HDD/SSD shared by both OS. This isn't fun to build, but a performed when built.
Note the reason why the Diamond drivers linked in the post above don't work is that the digital signature file called "emwhql.cat" is missing. Its likely these drivers were never signed or the file went missing somehow.
-- merged --
NJRoadfan, this suggests there may be a way to get the ATI driver working by adding the digital signature file (emwhql.cat) to the installer.
I did nothing in particular and it installed fine on Windows 11 Pro. It shows up in Device Manager and can be used in OBS Studio (I know LordSmurf does not recommand using OBS but, let's be real, for most people, that's going to be the easy way out). The audio input works as well. It is not tested with Virtual Dub 1.9.x though but I would be surprised if it didn't work. If anything, it's VirtualDub itself that might not work.
SHGMC_2, could you please explain in detail how you installed this driver? Also, can you confirm that you are experiencing the video stuttering issues?
Vidbox drivers on Windows 11. I don't think they support an OS as old as Windows XP.
-- merged --
… I finally found working drivers. These come from Microsoft's Windows Update Catalog and are digitally signed. eMPIA drivers from 2015 without the weird chroma bug the 2019 VidBox drivers have. The install procedure is the same. Might want to clean up this thread to reflect this.
Note: I did find a version of the 2009 drivers with the proper signing but they do not work in Windows 11. They will glitch out and drop frames.
Hi NJRoadfan,
I’m sorry to reopen this old thread, but I believe the information may be useful for everyone who reads it.
Thank you for sharing—I’ll install this on my computer.
May I ask where exactly you found this driver?
