Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
The error correction code on music CDs is different from the one used on data disc. Most likely this is the reason why the tweaks such as green pens, anti-vibe rings etc make a big difference. This is also why playing pure .wav or .flac from a data CDR on players that can handle it is less affected by them. -- Kiep Kiep's Profile: http://forums.slimdevices.com/member.php?userid=8844 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
I used to use Rain-X on CDs. It works to fill in microscopic pores and imperfections on the CD surface, ostensibly saving the laser servo from overwork. My brother and I used to do blind testing on each other with 2 copies of the same CD and a CD changer. It was usually pretty easy to pick out the treated CD. It seemed to work better with some CDs than others. -- Pale Blue Ego Pale Blue Ego's Profile: http://forums.slimdevices.com/member.php?userid=110 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
I manufacture plastic asnd perspex products , any HEAT processing or thermoforming induces incredible stresses in certain plastics , notably those with short polymer chains (read cheaper materials) like polyprop , extruded pex and polycarbonates. Its pretty easy to see under polarised light. Vinyl is not as affected The only way to reduce these is by annealing, and that is to heat up the materials to temps below their thermosplatic points for quite long times and allow to air cool. You could put your cds in a thermofan oven at 70 degrees c for an hour or so and let em cool if you really wanted to. I also laser cut and engrave plastics , you should see what THAT does to em in regards to stress!! -- Rodney_Gold Sb3/Z-sys RDP1/meridian DSP5500's TP/X-cans v3/Senns 650's TP/TACT 2.0/SCM 50a's TP/Meridian DSP5000's "The nicest thing about smacking your head against the wall is...the feeling you get when you stop" Rodney_Gold's Profile: http://forums.slimdevices.com/member.php?userid=14618 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
bigfool1956;278771 Wrote: > Sadly one day I sat on my Dad's 78 :( I can remember as a child using my mother's vintage 78 collection as frisbees. Ooh, did that warm ny buns for awhile. . -- haunyack Transporter -> B&K 200.2 -> Vandersteen 3A Signature C.G. Conn New York Wonder haunyack's Profile: http://forums.slimdevices.com/member.php?userid=9721 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
Oh yes, so there is. I might even have it in my collection. Sadly one day I sat on my Dad's 78 :( -- bigfool1956 David Ayers Music is what counts, hifi just helps us enjoy it more bigfool1956's Profile: http://forums.slimdevices.com/member.php?userid=13782 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
Completely OT, but when I was a kid, my Dad had a 78 which when played would give you a commentary of a horse race. The thing was that each time you played it a different horse would win It actually had 6 concentric grooves cut into it, and it was therefore random which groove the pickup would fall into when placed on the record. I loved that disc, but then I was only a kid. -- bigfool1956 David Ayers Music is what counts, hifi just helps us enjoy it more bigfool1956's Profile: http://forums.slimdevices.com/member.php?userid=13782 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
bigfool1956;278768 Wrote: > Completely OT, but when I was a kid, my Dad had a 78 which when played > would give you a commentary of a horse race. The thing was that each > time you played it a different horse would win > > It actually had 6 concentric grooves cut into it, and it was therefore > random which groove the pickup would fall into when placed on the > record. > > I loved that disc, but then I was only a kid. There's a famous Monty Python LP that has the trick (2 concentric grooves) -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...SB3+Stontronics PSU - Altmann JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC V3/X-PSU/X-10 buffer (Audiocomm full mods)- Linn 5103 - Linn Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Kimber & Chord cables Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
bigfool1956;278752 Wrote: > I do notice that tracks near the end of a long CD tend to have more > problems than others. As these tracks are on the outside of the CD, I > assume that is due to warping. Good observation, I've noticed this too. I had assumed it was due to a slightly off-balance CD that was wobbling. The wobble would be more pronounced at the outer edge. There was an early MythBusters episode where they spun a CD in a router - the high-speed camera showed that the wobble was so pronounced the CD was literally bending into a wave shape at the outer edge. This probably happens on all CDs to a much lesser degree. You can even hear an out-of-balance disc, it causes the drive to become noisier as it's working harder to spin it and trying harder to keep the speed constant. A bit of trivia, way back when I remember seeing the CD single for Green Day's -Brain Stew/Jaded-. It was shaped like a brain! Obviously out-of-balance, and there was a prominent warning that it may not play in all players. I should have gotten it just for collector's value... -- Mark Lanctot Mark Lanctot's Profile: http://forums.slimdevices.com/member.php?userid=2071 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
bigfool1956 wrote: > LPs are circular lumps of plastic, pressed out at speed, and subject to > warps, air bubbles, non-concentricity, and sometimes not being > circular. > > CDs are circular lumps of plastic... pressed out at speed and subject to all the stuff of an LP. They are pressed from warm plastic. I'm having a really hard time seeing where there is any "stress" as mentioned up thread. > I do notice that tracks near the end of a long CD tend to have more > problems than others. As these tracks are on the outside of the CD, I > assume that is due to warping. Could be do to many things. Sometimes they cheat on the spacing to squeeze more spiral turns in (there is only one spiral on a CD). -- Pat Farrell http://www.pfarrell.com/ ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
Do a blind listening test and see if you can tell the difference. If you can't why bother colouring your CDs in? -- probedb Paul. 'last.fm' (http://www.last.fm/user/probedb) probedb's Profile: http://forums.slimdevices.com/member.php?userid=7825 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
LPs are circular lumps of plastic, pressed out at speed, and subject to warps, air bubbles, non-concentricity, and sometimes not being circular. CDs are circular lumps of plastic... CD Players have to get the bits off, in a timely fashion, and the power demands of their servos can interfere with the player, and even other items in the replay chain. Ripping has to get the bits off - and that's it. Recent experience with ripping shows that getting the bits off is perhaps not as difficult as I previously thought. Most CDs in Accuraterip go through dBpoweramp on the first pass. I do notice that tracks near the end of a long CD tend to have more problems than others. As these tracks are on the outside of the CD, I assume that is due to warping. So items that I know to work, such as the Ringmat Statmat, or the CD Lathe are presumably more about reducing jitter and/or the work the servos have to do. The CD Lathe will make your CD perfectly circular, something that they are frequently not. That alone will reduce the load on the servos and motors. As always, the problem is identifying all the factors involved. For example, why does streaming wave sound different to streaming flac (wired) on a TP ? It ain't the quality of the bits. -- bigfool1956 David Ayers Music is what counts, hifi just helps us enjoy it more bigfool1956's Profile: http://forums.slimdevices.com/member.php?userid=13782 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
CD lathing is very problematic the CD manufacturing process results in extreme stress in the plastics the CD is made of , lathing , if it generates ANY heat adds to the stress.Any solvent in a marker will also promote tiny stress cracks, as will lathing. This is generally not a hassle in cd playback as it's slow. Spin these cd's in a fast drive for extraction and you can have the cd grenade in the drive. This has happened to me. Do not subject CD's to ANY heat or solvents. -- Rodney_Gold Sb3/Z-sys RDP1/meridian DSP5500's TP/X-cans v3/Senns 650's TP/TACT 2.0/SCM 50a's TP/Meridian DSP5000's "The nicest thing about smacking your head against the wall is...the feeling you get when you stop" Rodney_Gold's Profile: http://forums.slimdevices.com/member.php?userid=14618 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
I'd like to get to the bottom of the science behind this if there is any. If I'm following this correctly, the CD surface treatments improve CDP replay perceived sound quality. However, a rip from a treated disk sounds identical to one from an untreated disk? In which case, the following possibility spring to mind: The surface treatment makes no difference to the bits received, however a CDP has to work harder to track an untreated disk and so servo noise causes jitter or other artifacts which affect the real-time output of the CDP. However, a rip is never going to suffer like this in the first place since there is no real-time activity as such, we are just moving bits around from one storage media to another. Jitter, noise etc will only appear later when the rip is "played" - by which time the disk and its laser reader have already left the building. Since there is no reliable way of comparing the audio playback quality of the CD in a CDP versus a ripped file via a media player...not sure where that leaves us. For me this is part of the equation that renders CDP redundant, since they are inherently more flawed as a digital TRANSPORT mech than a hard drive. Bits are bits until they hit the DAC - then the fun begins. -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...SB3+Stontronics PSU - Altmann JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC V3/X-PSU/X-10 buffer (Audiocomm full mods)- Linn 5103 - Linn Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Kimber & Chord cables Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
zanash;278682 Wrote: > > On this note a number of people have asked does the effect extend to > flacs made from treated disc ...unfortunately not ime treated and > untreated sound identical ...therefore the gains are only in the cdp > replay mode. Why do you consider that "unfortunate"? -- opaqueice opaqueice's Profile: http://forums.slimdevices.com/member.php?userid=4234 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
if you must use cd . I've used the original stop light and various incarnations of poster paint pens over the last 20years the effect can be heard just [on the cdp's I've used ] far more effective are cd flux cleaner by phonosophie this produces an effect that very obvious the down side is the cost but a bottle has treated 1000 cd's an still has some left. The other item that produces the archetypal night and day difference[on my cdp] is a Glasse Audio system lathe I have a number of duplicate discs and its clear from the first few notes the effect that this treatment has once you swap between disc. On this note a number of people have asked does the effect extend to flacs made from treated disc ...unfortunately not ime treated and untreated sound identical ...therefore the gains are only in the cdp replay mode. -- zanash Acoustician and builder of interesting cables zanash's Profile: http://forums.slimdevices.com/member.php?userid=12157 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
radish;278106 Wrote: > Who uses CDs anymore? This is what you need these days: > > http://www.newegg.com/Product/Product.aspx?Item=N82E16811144011 LOL review says > Cons: color is slightly off what the picture shows That's a -con-?!? -- adamslim Those are my principles, and if you don't like them... well, I have others SB+, EAR V20, Living Voice OBX-R2s plus some other stuff SB3, Charlize, Harbeth HL-P3ES adamslim's Profile: http://forums.slimdevices.com/member.php?userid=7355 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
Who uses CDs anymore? This is what you need these days: http://www.newegg.com/Product/Product.aspx?Item=N82E16811144011 :) -- radish radish's Profile: http://forums.slimdevices.com/member.php?userid=77 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
If you do, this may be of interest: http://forums.slimdevices.com/showthread.php?t=44533 -- morris_minor morris_minor's Profile: http://forums.slimdevices.com/member.php?userid=13950 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
