Let me go through the list and let you know what I have done.
1. Multi-tasking: Is a non-issue on the machine I am running, but I have closed all unnecessary windows and any non-essential programs. The audio issue does not live here.
2. Program Settings: I would imagine it is not set up properly which is why I am having these issues. I have a feeling it is because I have tweaked too much and don't know what I have done wrong now. I still have not been able to fix the preview in the corner issue from another post.
3. Anti-Virus and other Background Software: My CPU doesn't even reach 20% during capture, but I have closed all background programs and anti-virus.
4. Heat / Overheating: Again, CPU is not even breaking a sweat and is cooled by a Corsair H80. Doubtful.
5. Reboot! Shutdown!: Not the issue. It doesn't stay on at night.
6. LAN and Internet: Tried this, is not the culprit.
7. Use the Best Drivers: I am using the only driver I can find for this card. You are welcome to suggest another one. I am using a WinTV 1600.
8. Software vs. Hardware Encoding: From what I understand, this card is hardware encoding. Although I wonder if I would do better with software encoding.
9. Slow or Old Computers: i7-2660k CPU. Not an issue.
10. CPU Usage: Not maxing out with one exception. Last night I captured a 4 hour long special taped from TV in the 80's. CPU was fine for the first hour and a half, then hit its ceiling and maxed out for seemingly no reason. VT adjust was in the billions and audio lost sync in the preview where it normally does not. Every other capture I have done the CPU never hits 20% however, this was the only case.
11. VHS and other Analog Videotape Source: VDub reported no dropped frames for the first thing I recorded last night which was about an hour long.
12. Hard Drive Fragmentation: It's got nothing on it. Solely used for capture.
13. Separate Hard Drives Suggested: It is separate and it is on part of the system I am using to capture, not the NAS.
14. Check Your Hard Drive Settings: I'd check it if I could find it on Windows 8.1
15. Capture Software and Codecs: Have only used VDub with both Lagarith and Huffy codecs which both produce the same result. Audio is not synced.
16. Preview Window: Tried it both on and off. Same result.
17. Sound Cards: Don't have one. Uses on-board.
18. Desktop Graphics Settings: Capture card is not running my display graphics, my GTX 780 is.
19. Memory / RAM: 8 GB of RAM and works fine.
20. Hard Drive Cache: Enabled
21. BIOS Settings: Checked, nothing seems like it would interfere.
I have tried everything I can think of. I have read not only this forum, but others as well. One thing that seemed to work was to correct the audio length after capture in VDub, and I had thought maybe that I could fix each video after the fact, but I did the same method on the capture I had made of the 4 hour special and it didn't even get close. The math said to delay it 82000ms which means it got pretty bad.
I'm frustrated at this point and running out of time to return the equipment to get my money back and Just forget the whole thing. I have until the end of the day to get an RMA from
tGrant for the VCR so if you can think of any other things I can try to get this working by then, I'm all ears.