very well built. AES/EBU input balanced analog input

--Picky about brand of computer-grade CD-R's/CD-RW's. I've used maxell CD-R's, and they always work--and play even in older pre-CD-R equipment. --- SRC sample rate convertor handles sampling from 11Hz to 56Hz; doesn't digitally record 96Hz/24bit, DSD etc. (new Tascam DV-RA1000 does)

I love the versatility of this thing. Selctable SCMS, digital AES/EBU, co-ax, optical inputs. I sometimes use it for a CD source using its digital co-ax output (yes, it does have one) into Audio alchemy Pro33DTI/DDE V3.0 HDCD D/A or into a lexicon DC-1 4.0 digital controller. Using my DBX 386 tube pre-amp with their typeIV A/D conversion, one can make great copies of tapes, vinyl etc. Sometimes these even sound better then pre-recordes CD's!!

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Pioneer PDR-509 CD-R recorder Rotel RCD1070 HDCD Denon DVD-2900 DVD-A/SACD Audio Alchemy Pro 32DTI,DEv3.0,DLC M audio 9624 Superdac

Crisp/Powerful Playback Sound, Beyond Excellent Recording Reproduction, Records on all disc types plus "Pro" (computer discs), Digital Level Recording, Complete Selectable SCMS, CD Text Inputs, 2X Finalization, Fast and Direct Multiple Play functions (10 key, large green button play, or level select play), Professional AES/EBU, XLR I/O. Gorgeous rugged design/built.

No Coax out, fader does not completely fade out...still hear recordings when turn volume up to max(no biggie, I can bypass this method by using a mixing board or through my PDR555RW),very sensitive to disc type or certain disc manufactured, ie: it sometimes won't detect the disc...(this only happens when I use an unpopular disc brand) but however, my PDR555RW can detect any disc brand/type.

Without a doubt this is the best "pro" digital recording system anybody can own, with features like: SCMS manipulation (selectable), record on "pro" (computer type) and consumer type discs, and much more, etc.... The recording and playback are beyond my expectations. I bought this unit mainly for archiving my "out of print" vinyl collection. Its response is very quick when the record button is activated (which is very important for those of you who knows what I mean when it comes to perfect vinyl archiving). The large digital/analog level/function dial on the right works just like a professional mixing board, which fades in and out with perfect timing. This is a bigger plus over the new CDR500 (dual well), because if you want to do perfect discriminating recordings, you will need the level select dial. I currently run a coax out from my Pioneer PDR555RW to clone pure digital extras. All I can say is: why spend $600.00 or more for a high end consumer deck (NAD) when you can get a pro unit like this...and the Playback and Recording results far exceeded my expectations...A true winner!!!

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Technics/Phillips DCC, Pioneer PDR555RW.

Evrything as listed in it's specifications above. User friendly. Excellent manual. Great bargin (at my cost)

Real time recording for CDs as it is a single draw unit. Wouln't matter for vinyl anyway.

Wanted to transfer many of my vinyl recordings to CD. Didn't like the idea of computer programs designed for this purpose so I decided to go with a CD recorder. After many hours of reading reviews of "consumer" models, I decided on the Studio Marantz model. This machine does it all. I won't go too far in depth as you can read most of the details of it's capabilities in the Specifications above. The 631 is very user friendly, extreamly easy to use and can substitute as your main player in your system if need be. I haven't done any playback comparisons as of yet because I have another player in my main system. Quality of recorded CD is perfect. recordings maintain all the inner detail, resolution, depth, etc. of the original source. My setup consist of unballanced RCA connection through the tape out of my Jolida tube preamp. Time will tell on the reliability of this unit as it is too new at this point. For now it gets 5 stars as I believ it is 'amoung' the best in component CD recorders.

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Only did instore comparisons of some consumer models that don't have most of the features of this unit. Have tried various consumer units from friends.