I stared at the Grabster AV350MX long and hard.. and then studied up on the usage patterns of the EMPIA bridge chip in combination with all of the Terratec Grabster models up through G4.
Then pulled the trigger on a G3 last night.
Basically the AV300MX is well known and not worth the effort.. the decoder is.. well lets not talk about it.
The AV350MX has the well known TI 5150 found in the ATI 600 USB.
Chips are one thing, but other things can make it a great buy, or a poor choice.. in this case I've experience with the form factor of the AV350MX since its identical to the Grass Valley ADVCmini. The "mini" has a different set of chips in it but the format factor is a skeleton on the corners of heavy duty "real" brushed aluminum with a matte texture it it. The interior panels are made of lucite or some plastic. Disassembly is four screws under the rubber feet and it literally falls apart in your hand when you turn it upside down... in a good way. The panels come loose and the top comes out so the board is easily removable with no effort or damage.
This matters if the connectors get loose or worn out.. its not that far a stretch to de-solder and replace the connectors and keep going.. but its already tight and well made. Those are full sized connectors and hold on tight. There is no reason to jump right to taking it apart.. its a beautiful form factor to use as it is.
The "Gx" series are same design with "gold" contacts on all the connectors, and an anodized or black frame with black panels.. otherwise it looks the same.
I chose the G3 over the AV350MX due to cost and availability. the AV350MX is mostly only available from Germany at this time, but the Gx series are still being sold from the UK. Still German made... just easier for me to import.
I think the AV350MX is Windows only.. up through Windows 7.. and perhaps not Mac compatible.. I'm confused on this however because I've read that it is.. it may be a matter of sourcing your own Mac capture application.
The G3 has capture apps for both Windows XP, 7 through Windows 10 and Mac OS X 10.5 and above.
I've looked at the software for both operating systems that comes with it.. The windows software I think I will avoid and simply use it with with
VirtualDub. The Mac software is a re-branded version of EchoFX VideoGlide.
I'm beginning to think on the OS X side.. VideoGlide is as close to
VirtualDub as we can expect.. but its not nearly as simple and useful as the Grass Valley ADVCmini and its software.. but that device appears to be very hard to find these days... its well worth a good deal however if you find one laying on the sidewalk.
Before coming to this choice.. I spent a lot of time looking at the VC500 capture dongles (I have one) and the ATI TI 507 based eyeTV dongles, and ATI 750 (which uses the T507 chip too).
The problem with the VC500 is its quite variable, they have had multiple hardware versions in the same shells, and multiple software driver releases that are not backwards or cross hardware compatible.. only the specific driver for your specific "hardware version" that looks identical on the outside.. will work. And the EMPIA bridge chip makes it hard to figure out which hardware version you have.. so basically you keep swapping drivers.. or only use the cdrom with the driver that came with your device and don't try downloading any driver update.. there are none.. only more versions of the drivers for different hardware.. in the same case. Ugh.
Since VideoGlide is exiting the market place on the Mac platform after Apple abandons Quicktime this year.. EMPIA seems to be releasing their own versions of VideoGlide's software.. at least it has the EMPIA logo and EMPIA hyperlinks sprinkled throughout. As a practical matter I think they will stop making these dongles once Apple locks them out of the ecosystem... at least for Mac.. they may continue to produce them for Windows 10..
The dongle format also has a problem with signal cross talk at the "neck" of the connector where everything intersects with the body of the dongle.
I first noticed this with the ATI 750.. I had to spread the wires out as far as I could to minimize the hum and video instability being picked up.. it wasn't the length or a specific S-Video cable.. only wiggling the "neck" of wires at the choke point could minimize it.. it was "infuriating".. then I noticed.. every single one of these dongle form factors (no matter the brand) had the same problem to varying degrees.. I just didn't notice it until I had a very bad case of it with an ultra thin and cheap "choker" cable connector.. now I see it on every one.. wiggle the neck and the picture and sound vary widely.
The eyeTV hybrid was the best made.. but still it gets hot.. and its a nest of inelegant wires to deal with hanging off a USB port.
So I ran back to the ADVCmini boxee form factor.. which the Terratec Grabster line shares.. the "Grabster" name is rather "jokey" sounding in English.. but its heavy, stable, easy to set down and run standard RCA, S-Video DIN or SCART cables to.. and the TI 5150 decoder means the picture will be nice. The G3 uses the EMPIA 2680 for the bridge chip.. which doubles as the audio capture chip as well.
At first I didn't think much of the little "hockey puck" shape of the Grass Valley ADVCmini form factor.. I figured it was a painted plastic box. But it turned out to be a real metal (and heavy) exoskelton with plastic panels. Which serve a purpose.. they make it heavy and make it stay put.. and if you want.. they make it possible to stick some double sided heavy velcro to them to make it even "more" semi permanent.. and if you wanted to dissassemble them and drive mounting screws through it and put it back together without damaging the circuit board in the box.. you can do that.
It has no fan.. but seems to run cool.. it has no hardware encoder.. or Tuner or RF demodulator to generate lots of heat. It also doesn't have an SDRAM chip for a TBC or extra big 3D Comb filter.. but the TI 5150 does have something called a "VLLST" (I think thats the spelling) which stood for "variable line length stabilization".. which means its basically got a Line-TBC built into the chip.
Comb filters don't matter to me since I don't plan to use the Yellow Composite input.. I will use the S-Video input.. or my own external box for splitting the Chroma from the Luma. So thats less to worry about. And it makes the box run that much cooler for not having a big "hot running" SDRAM chip.
It is a 9-bit decoder, not 10-bit (Micronas) and not 12-bit (ATI) but that's better than a straight 8-bit (EMPIA).. and it captures in full 720x480 mode.. not the 640x480 common to EMPIA solutions.
Its also USB line powered.. which is kind of convenient.. though not a must have feature for me.
I think the TT G3 will be nice, and that the TT AV350MX would also be nice since they are still semi-available on
Amazon and eBay for Import... and they do both NTSC and PAL.. also nice.
The absolute "best" I've used so far have been:
Windows - ATI TV Wonder USB 2.0
Mac OS X- Grass Valley ADVCmini
Runners up would be the AJA IOLA, and Matrox O2, or the AGP and PCI, PCIexpress cards.. but those carry a lot of baggage that can be hard to set up and maintain over time.. more a pro-shop type solution.
I have slowly.. come to "appreciate" the Pinnacle 500, 700 capture boxes.. but I would not recommend them.. I often use them as monitor tools through Windows GraphEdit and they aren't for the casual user. Again their form factor comes into play.. the 700-usb is USB powered, runs cool, captures at full 4:2:2 and its made of solid metal or steel.. it stays put.. cables are not a tangled mess. 500-usb less so, its a plastic box and useful.. but not that much.
I have a love hate, regret thing going on with Magewell PCIe and USB capture solutions.. in theory they are great.. and I got them at bargain prices.. but.. boy could they be improved. Not for the impatient or faint of heart. I tend to think of them in the same league as the Hauppauge or AverMedia solutions.
These Terratec Grabsters could be the next best thing to sliced bread.. but only time will tell..
I should stress.. I'm a "youngster" compared to the experienced crowd on this forum.. so my opinions do not count for very much.. I'm just exploring.. and these are my current opinions.