I bought a pair about 4 years ago. For the life of me, I can't remember the name of the company, but I do remember they were in Germany. I picked them up at CompUSA for around $30.
At the time, I had my old Pentium II 400Mhz, overclocked to 500Mhz. My video card was Creative's TNT with 32mg. The glasses highly recommended using their line of NVIDIA cards, which also included a TNT model. They could not promise that the glasses would work without their cards. In fact, the only cards that MIGHT work, had to be NVIDIA. They included reference drivers for these cards only.
I loaded the drivers, and they worked! One of the 2 CDs that came with the card included some game demos, made exclusively for the glasses, but I found that my Lucas Star Wars games worked good too. The most amazing being "Pod Racer". My stomach would actually jump like I was on a real live rollercoaster. It was amazing. One of the demos was a game called "Rollcage", which was a futuristic car racing game. CompUSA happened to have it on sale for $14.99, so I bought the full version.
There were problems though. The reference drivers replaced my card's original drivers, and I could not update my drivers from Creative. My other programs worked fine, but Creative issued 2 major upgrade drivers, while the 3D glasses company did not. I felt I was missing out.
Also, if I played any of my games for too long a period of time, I would get headaches. "Rollcage" would actually make me sick to my stomach. After a few months the novelty wore off, and I used then less and less.
I then built a Pentium III and bought one of the early GeForce MX cards. The reference drivers didn't work on this card, and the 3D glasses company had never issued updated drivers, except for their own cards. It was time to say goodbye to my 3D glasses.
I gave them to my son, who had inherited my old Pentium II. He got about 6 months of use out of them, before he accidently stepped on them. He wasn't totally disapointed, because the glasses didn't support a couple of his favorite games.
If The price was right, and the 3D glasses were in no way tied to a specific company's video card, I might consider them again. The glasses I had, used a method of flashing (I not sure that would be the correct description) that fooled the optic nerve and created the 3D illusion. That might also have contributed to the headaches and upset stomach.
Anyway, that was my experience with 3D glasses. If I come across the old CDs from the company in my inventory of CDs, I'll post their name here. I would love to hear anyone elses experience with 3D glasses.
Robert
PS
The glasses came with a spliter type adaptor for the monitor plug, so the glasses would hook into that. To activate the 3D glasses, you had to click on the 3D icon which sat in the system tray. You would click on this icon again to de-activate it. When the glasses were activated, if you looked at your monitor without wearing them, you would notice the flickering on your monitor, which would sync with the flash in the 3D glasses. I also wondered how good this was for my monitor