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In Reply to: RE: CD tweak DIY posted by geoffkait on June 01, 2023 at 13:55:48
This is the first time I kinda agree with Geoff on the use of 3M electrical tape on a cd.See my post of a few years (4/12/2020) back titled 'Turntable Platter Tweak with Tape' . Right now this is on page 14 of this forum.
I tweaked it per Gary Koh's use of it on HWeisfeld's platter at an audio show, and HWeisfeld agreed with the tweak. I had a Scout tt with the acrylic platter and it really worked --- who would have thought?
Anyway, inmate Moray James brought up the point about how it 'may be useful on a cd'.
Scroll down to my 4/25/20 remark as I did some experimenting onto a cd disc with the 3M electrical tape 88 (3/4 inch wide roll). Enclosed is the pic of that day... it was just placed half-way from outer edge of disc to inner ring (just eyeballed it--- did not use any type of ruler --- just eyeballing equal distance). Press down with a little more pressure onto the disc. As for the width --- it was done by eyeballing it, again did not use any measure to ensure it was at 1/2" wide when cut. So if you were to look at the cd with the tape on, it should look like it has a more vertical look.
Even though I realized I said to cut it 1/2" wide, (that pic) it looks to be more closer to 3/4" wide, so within a few days after I took that pic on 4/25/20 I did cut it to be 'skinnier'. Again, all by eyeballing it --- simple, no use of any measuring tape.
It is *over three years* since I first added the 3M brand tape and NO there has not been any negative effects such as sweating, damage to this or any of my other discs or to the disc player at all.
Few years ago, I thought of showing/sending into to Steve Guttunberg to tell of my cd tweak but just decided not to...Back in the late 80s/early 90s, yes I tried using the green pen, the black pen, the navcom rings, a different lens atop of the laser beam, etc... but this experiment I did was great!
Moray James and I had a little private discussion with my tweak back then and with his tweak (by the way, I see he has not posted since Aug 2022) and we both agreed that the tweaks we show to others only result in being ostracized... that is why I didn't say anything after Aug 2020 about my electrical tape tweak. His tweak was with the use of scotch tape and installed in a certain manner... I 'felt' mine was better due to its ease of installation (3/4" x 1/2" 3M black electrical tape and that was it).
Again, add pressure when installing it onto the disc... that's it -- no tape residue after 3 years of usage ... no lie ! \uuu/
Edits: 06/14/23 06/14/23Follow Ups:
Would you believe I've been sitting on this tweak since 1995? Was that wrong of me?
To the extent that this lengthy thread was ever about offsetting uneven CD weight distribution rather than Geoff Kait, much of the historic problem went away as labels produced thinner discs. The CDs that first came on to the market after the Sony CD player launched in 1982 were THICK. The German CD Sound Improver with which I uniformly trimmed the edges off my 'thick' collection later was a major reducer of the resulting vibration. (Woe betide anybody using it on a thin Philips CD because it could shred them!) Then all the labels gradually made their CDs thinner so shrinking the consequences of imprecise engineering. Having tried all available options, nothing works better for me than Marigo Audio's mats when stuck down to the CD with narrow strips of Scotch removeable double-sided tape.
Ack chew ally thinner discs make the problem worse since thinner discs tended to vibrate more and wobble more, since they were less stiff. This was due to both out-of-round discs and the fact the discs are rarely absolutely level during play.
Edits: 06/15/23
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