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In Reply to: Re: What do cd tweaks imply about what better-designed cd would look like? posted by TomLarson on March 2, 2007 at 15:00:28:
HowdyWell I do like the steps JVC's XRCD2, XRCD24 etc. have taken. A more precise mastering clock, more control of the mastering and more quality control of the resultant discs: e.g. http://www.audionautes.com/lp_cd/jvc/xrcd24.htm
FIM's XRCD24s sound pretty good to me.
Follow Ups:
But the thing is, even with those disks (or, actually, the one I've tried) the tweaks work, improving the sound in the same way they do with regular disks. I understand (maybe) that jitter reduction is important, but I ask myself how comes it that the tweaks improve the discs? What would it take so that a cd no longer was affected by any of them? Right now, lousy disks sound better, great disks sound better. Should the disks be made of different material? Should the layers be different thicknesses? Should there be no 'protective' layer (for best sound)? Should the playing side of the disk be ....I don't know, not as shiney? I don't know the answers to these questions, I don't know what else might work. It just seems to me that it would be interesting to explore going that way, towards the physical disk. I haven't read anything along those lines.
has been my experience that disks with rounded inside and outside edges that are sanded or are made with a sand blasted mold work better. Same goes for the clear section in the middle and the extreem outside top and bottom surfaces. Painting the lable side black also helps as does painting the inside clear section (both sides)and outside/inside edges. Cryo treating also improves things. I also wash wax and topcoat shine the playing side. While I have not had the chance to use a small disk lathe to make the disk true (round) I would assume that a more or better balanced disk would also provide audible improvement.
moray james
I have done some of these things, not all. So can you imagine a disk that was made with (some of ) these modifications from the word go? I have no sense of stamping disks, so I can't tell how difficult it would be. But in the same way that audiophile lps are made differently, I thought the same could happen to cd's but didn't know what. THanks for your response.
There are some disks made this way. I have seen several different makes (the names escape me now) that had rounded inside and outside edges along with pebbled or frosted surfaces that were designed into the disk mold. I have also seen lable sides of disks painted all black but suspect that was as a result of cosmetic dsign choice.
There are also people that believe that CD/DVD mediums do not live up to the performance promissed. George Bischoff lead a group known as Bischoff Audio Gemeinschaft in Berlin Germany. They have produced an optical recording disk known as the "44.1+" CDR. These are available through George Bischoff Audio Engineering at 506 Brookside Lane, Hillsbobough, NJ 08844, toll free 877-272-1567, Fax 908-314-0042. You can also try www.bischoffaudiogemeinschaft@web.de Regards Moray James.
moray james
Thanks for the info. I'll check it out!
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