IDM Mailing Archive

Just my thread, sorta. I'm sorta curious to know if anybody knows any tricks to scratching a CD so it will skip. I tried on one and after several deep cuts it still wouldn't skip, so then I mashed it up real good and the CD player couldn't read it at all. Otherwise would someone know a computer program that could simulate CD skips? Thanks.

quoted 36 lines Baking soda free toothpaste....

>Baking soda free toothpaste.... > >Damn two emails in one day after three years of silence, >I must be sick or something...... > >Steve.... > >-----Original Message----- >From: Ernesto Ikerd [SMTP:IkerdEA@lmtas.lmco.com] >Sent: Wednesday, June 10, 1998 11:30 AM >To: Martin Duncanson >Subject: Re: (idm) Help: Scratched CD's... > >>Can anyone advise me on getting rid of surface scratches on compact >>disks? Are there any products available or any tricks to polishing marks >>out? >> >>I made the mistake of loaning a few favourites to a friend for a party, >>only to have a couple returned unplayably scratched on the read side. >>aaargh! :-( >As bad as this sounds, I have used car wax with a %50 success rate. > >If you get that green bottle 'Turtle Wax' instant stuff that you rub on >(thinly), let dry, and rub off with a CD-cloth.. If the scratches are >bad, Ive even heard of folx using ultra-fine grit sandpaper before the >car-wax treatment but I have not been quite that brave. > >ernie > > >Ernesto Ikerd, (817) 763-4795 >Company Graphics, Dept 17 >Lockheed Martin Tactical Aircaft Systems >Fort Worth, Texas > >

<Jon>m

On Wed, 10 Jun 1998, Jonathon Stevens wrote:

quoted 5 lines Just my thread, sorta. I'm sorta curious to know if anybody knows any

> Just my thread, sorta. I'm sorta curious to know if anybody knows any > tricks to scratching a CD so it will skip. I tried on one and after several > deep cuts it still wouldn't skip, so then I mashed it up real good and the > CD player couldn't read it at all. Otherwise would someone know a computer > program that could simulate CD skips? Thanks.

Using a Sharpee marker (or other opaque, isopropyl-alcohol-removeable felt pen ink), draw a spiral out from the center that goes clockwise and moves from the inside to the outside in one 360 degree cycle. I avoid marking the innermost 1mm, as somewhere in there is the cd formatting/track info. You can fatten the mark with the pen if it doesn't skip easily enough, and use alcohol to wipe it off. In fact, you can use good cds if the ink is removeable. I am not sure of prolonged efx of alcohol on the plastic, so I wash the cd gently with water and soap afterward, too. Using a '87 Denon consumer cd player, I can usually get any cd to skip at any selectable point of any track using this line and it will still advance tracks and move forward and backward in a controlled manner. I have a newer cd player (3 laser) that doesn't work as well, as it is harder to get the line just right so that the skip doesn't jump to distant parts of the disc. Solenoid np - pacman vs cologib (excellent! + makes me want to go play vectrex) solenoid@europa.com <------+

On Wed, 10 Jun 1998, Jonathon Stevens wrote: | I'm sorta curious to know if anybody knows any tricks to scratching a CD | so it will skip. I tried on one and after several deep cuts it still | wouldn't skip, so then I mashed it up real good and the CD player | couldn't read it at all. Otherwise would someone know a computer | program that could simulate CD skips? Thanks. I don't know about the physical approach. I've only sampled stuff I've come across. But... If you have an external sampler, or some kind of hard disk thing that uses midi information, you may be able to assign velocity to sample start. Program and irregular pattern of some sort, randomize velocities as appropriate, leaving the sample's attack to click as it is triggered each time. It's also very nineties. ;) Michael "You know what? I'll call him Jet Jaguar..." http://www.vuw.ac.nz/~michael/jj.html Site last updated 15/4/98

so let me get this straight; you draw on your cd's and then listen to them jumping! why?

mark s-walker <mark@koons.demon.co.uk> wrote:

quoted 5 lines so let me get this straight; you draw on your cd's and then listen to

> > so let me get this straight; you draw on your cd's and then listen to > them > jumping! > why?

Some of us use skippings cds as an instrument. You get a nice skip and loop it. Amazing how it can become percussion. Once done you load it up into a sampler and use it in your composition. This has been done by many people who make music <including me> but probably the electronic musician most famous for this is Oval. -daniel n.p. Shinjuku filth - raised by wolves

On Fri, 12 Jun 1998, daniel wrote:

quoted 14 lines mark s-walker <mark@koons.demon.co.uk> wrote:

> mark s-walker <mark@koons.demon.co.uk> wrote: > > > > so let me get this straight; you draw on your cd's and then listen to > > them > > jumping! > > why? > > > Some of us use skippings cds as an instrument. You get a nice skip and > loop it. Amazing how it can become percussion. Once done you load it up > into a sampler and use it in your composition. This has been done by many > people who make music <including me> but probably the electronic > musician most famous for this is Oval. >

Go for the sharpy pens. Coarse sand paper would work too. Or if you really like skipping I have some junk CD players on a shelf for you. The absolute king of alternate CD technology is a gentleman named Nicholas Collins, who invents his own instruments. He has hacked into CD players and made controls for manipulating loops and fast forwarding. Another of his inventions involves feeding signals into a guitar pickup which inductively vibrates the strings and then amplifying the output of a second pickup. He has (or had) stuff out on Robert Poss' label Trace Elements, but I don't know if Poss is still keeping the label going.