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Question: I need instructions on how to hook it up to DVR and DVD recorder.  All I get is blue screen.  Can anyone help?  I'm desperate!!!!
Document: This is a legit copy guard remover. It works exactly as described. It arrived well BEFORE the expected delivery date. I have copied a few VHS movies to DVD and a few movies off my DVR. It has no effect on the picture whatsoever. The instructions are not in English however it is a very simple set up. I highly recommend this product to anyone and I'm very satisfied with the purchase myself.
I'm moving and must downsize my VHS tape collection from a medical course plus other educational interests but want to review and use the material in the future. The GREX stabilizer worked easily with my combo VHS/DVD deck once I figured out the hookup. I'm  copying how to videos on photography, music and other educational material which were expensive at that time and more expensive to replace. With 50+ tapes to copy this was an economical way to keep the original material. Instructions were online and you need to connect the GREX to the deck correctly.
I wanted to clear my DVR but had a few events which are NOT available for purchase. It was simple to transfer everything to my Panasonic DVD Recorder (without GREX, I received the copyright warning, and the recording stopped). 4 stars instead of 5 because it does not support HDMI (for high definition recording). But I freed up 60% of my DVR (I recently upped to high def).I recommend this product. Just go to the website for instructions, as all the pkg contains is what you see and the electrical cord.
When I read the reviews on this product I was VERY optimistic, however, upon receiving the stabilizer....I found that A) no instructions were sent along with it, and B) the website does NOT have instructions you can download - only a simple diagram which does NOT explain exactly how to set it up. Unless and until I figure this out on my own, and I have what I'm sure most buyers have, a receiver, a TV and a DVD recorder......I will NOT be recommending this unit.
I was looking for a way to put all our old VHS tapes on DVD before they disintegrate. This is the perfect product to bypass the copy guard put on VHS tapes to prevent reproduction. It was simple to hook up from the VCR to the DVD recorder. Took me about 15minutes to figure out the best recording set-up for my system. Be aware that written instructions DO NOT come with it, nor do cables. The instructions are easy to download from the company website and easy to understand. The cables are the standard video cables we all have laying around.
I'm using this unit to convert Macrovision encrypted VHS tapes to dvd. Using a newer VCR with Macrovision detection as the source did not work as well as I would have liked. There was still a slight pulse in the finished product. I switched to an older VCR which had no Macrovision detection and it helped greatly, eliminating 99% of all of the pulsing. This unit does descramble the Macrovision encoding but in my experience, it may still need a little help at the source of the program material. I have yet to try it in any other situation.
The recorder will stop. I love everything about this device just connect it with a video in/out cable and you've got yourself a great product! It works in all combinations: VHS to DVD, DVD to VHS, VHS to VHS, DVD to VHS, and VHS, DVD to other formats.I have no complaints about this device. Very simple! Images copy exactly as is seen on output devices. No form of degradation whatsoever.I'd recommend this product to anyone who wants to copy videos (Please don't do so for illegal purposes!
I was able to copy 2 videos with my VCR to DVD combo and I started having problems afterward, I suspect is my recorder, It would copy the content from my VCR, but when I recorded to disc, I was able to preview the recorded material, after I finalized the disc, it would not play on aything, not even on the recorded I used to finalized the disc. I decided to use it on my computer instead, I hook it up between the output of my VCR and my computer and I have not had any problems, the recordings are very clear witha a few minor distortion lines here and there, but I am still using it between my VCR and my computer.
In all cases, there is a little added noise from the GREX unit. It is a narrow pale horizontal bar of yellow shifted pixels about 1/6th of the way up the screen - I doubt most people would even notice, but if you play it back on a HD system, it is somewhat apparent, depending on how 'busy' and what color the background is. For duping shows off the DISH receiver, there is a little extra noise introduced by the repeated digital conversion (first DISH is digital, then output as analog through the GREX and re-digitized by my external DVR).
Easy to setup (with common sense or else get instructions from website.) Works great for converting old VHS tapes to DVD. Cannot give it 5 stars mainly because of the slight flickering of the recorded picture on the tv. It is not due to the VCR. Tied to record from multiple VCR's and the flickering occurred from all of them. All in all it works as advertised.
Answer: You need to run composite cable(3), wires red,white (audio)& yellow(video)from dvr to dvd recorder. audio stays the same.with extra single yellow (video) cord (usually sent with grey digital stabilizer)you will  run from output of video stabilizer to input of dvd recorder.then run the video (yellow) plug of the composite cord from dvr output to input of grey digital stabilizier.hook up complete.remember video is the only connection being affected,run yellow output of dvr to input of grey digital stabilizier,then run extra(supplied yellow cable) output of grey digital stabilizer to input of dvd recorder,no need to run extra wires to dvr input,as that may mess things up! tom    GET 2 HDMI CABLES,1 FOR SAT DVR.THE OTHER FOR DVD RECORDER,WIRE SAT DVR TO HDMI 1 & DVD RECORDER TO HDMI 2.THEN RE-RECORD MOVIE,WHEN RECORDING WATCH THRU DVD RECORDER OR HDMI 2.If You Wired it AS Previously discussed You shouldn't have anymore problems! PS,YOU ARE PUTTING MOVIE ON DVD DISC,RIGHT?